PatchSiren

Microsoft CVE debriefs

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

Known exploited Microsoft CVE published 2026-08-11

CVE-2026-68820

Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability debrief based on limited source detail. The vulnerability affects Microsoft Windows Ancillary Function Driver for WinSock, which is a Use-After-Free Vulnerability. This class of vulnerability could allow attackers to execute arbitrary code on affected systems. The technical impact is significant, as it could lead to syste [truncated]

MEDIUM Microsoft CVE published 2026-08-04

CVE-2026-66326

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-04T00:17:39.847Z and has not been modified since then. CVE-2026-66326 is a medium-severity vulnerability in Microsoft Edge (Chromium-based) with a CVSS score of 6.5. The vulnerability is caused by missing authorization, allowing an unauthorized attacker to execute code over a network. This could lea [truncated]

MEDIUM Microsoft CVE published 2026-08-04

CVE-2026-66325

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-04T00:17:39.703Z and has not been modified since then. This server-side request forgery vulnerability in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network. The vulnerability has a CVSS score of 6.1 and is classified as MEDIUM severity. Organizations s [truncated]

HIGH Microsoft CVE published 2026-08-04

CVE-2026-66322

CVE-2026-66322 is an origin validation error in Microsoft Edge (Chromium-based) that allows an unauthorized attacker to perform spoofing over a network. The vulnerability has a CVSS score of 7.1 and is classified as high severity. Affected users should be aware of this vulnerability and take steps to patch their systems to prevent potential spoofing attacks. The CVE record was published on 2026-08-04T00:1 [truncated]

HIGH Microsoft CVE published 2026-08-04

CVE-2026-66318

The CVE-2026-66318 record describes an origin validation error in Microsoft Edge (Chromium-based) that allows an unauthorized attacker to disclose information over a network. This vulnerability, classified under CWE-346, has a CVSS score of 8.1, indicating high severity. Users and administrators of Microsoft Edge (Chromium-based) should be aware of this vulnerability and take necessary precautions. The CV [truncated]

MEDIUM Microsoft CVE published 2026-08-04

CVE-2026-66317

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-04T00:17:39.183Z and has not been modified since then. CVE-2026-66317 is an origin validation error in Microsoft Edge (Chromium-based) that allows an unauthorized attacker to perform tampering over a network. The vulnerability has a CVSS score of 5.4 and is rated as MEDIUM severity. Evidence is limi [truncated]

MEDIUM Microsoft CVE published 2026-08-04

CVE-2026-66316

The CVE-2026-66316 vulnerability is an origin validation error in Microsoft Edge (Chromium-based) that allows an unauthorized attacker to perform spoofing over a network. This vulnerability has a medium severity and requires attention from operators, platforms, vulnerability-management teams, and security teams to ensure proper mitigation and protection of affected assets. Affected product context indicat [truncated]

HIGH Microsoft CVE published 2026-08-04

CVE-2026-66315

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-04T00:17:38.927Z and has not been modified since then. The vulnerability is a use-after-free issue in Microsoft Edge (Chromium-based) that allows an unauthorized attacker to execute code over a network. This type of vulnerability typically occurs when the browser attempts to access memory that has a [truncated]

MEDIUM Microsoft CVE published 2026-08-04

CVE-2026-66314

A time-of-check time-of-use (toctou) race condition exists in Microsoft Edge (Chromium-based). This vulnerability allows unauthorized attackers to disclose information over a network. The CVE record was published on 2026-08-04T00:17:38.797Z and has not been modified since then. Users should review the official CVE record and NVD details for further information.

MEDIUM Microsoft CVE published 2026-08-04

CVE-2026-66313

CVE-2026-66313 is a medium-severity vulnerability in Microsoft Edge (Chromium-based) due to an origin validation error. This allows an unauthorized attacker to perform local tampering. The vulnerability has a CVSS score of 6.8 and is classified as CWE-346. Organizations should review and apply updates to mitigate the risk of local tampering. This includes verifying Edge Chromium version is up-to-date, rev [truncated]

MEDIUM Microsoft CVE published 2026-08-04

CVE-2026-66312

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record for CVE-2026-66312 was published on 2026-08-04T00:17:38.510Z and has not been modified since then. This vulnerability, a buffer over-read in Microsoft Edge (Chromium-based), allows an authorized attacker to execute code over a network. The vulnerability has a CVSS score of 6.5 and a severity of MEDIUM. It arises from improp [truncated]

MEDIUM Microsoft CVE published 2026-08-04

CVE-2026-66311

CVE-2026-66311: Missing authorization in Microsoft Edge (Chromium-based) allows local tampering. The vulnerability affects Microsoft Edge (Chromium-based) and allows an unauthorized attacker to perform tampering locally. This issue requires attention from administrators and security teams responsible for maintaining Microsoft Edge (Chromium-based) deployments. The CVE record was published on 2026-08-04T00 [truncated]

MEDIUM Microsoft CVE published 2026-08-04

CVE-2026-65804

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-04T00:17:38.100Z and has not been modified since then. CVE-2026-65804 is a medium-severity vulnerability in Microsoft Edge (Chromium-based) that allows an unauthorized attacker to perform spoofing over a network. The vulnerability is caused by improper control of generation of code ('code injection' [truncated]

HIGH Microsoft CVE published 2026-08-04

CVE-2026-65802

CVE-2026-65802 is an external control of file name or path vulnerability in Microsoft Edge for Android, allowing unauthorized attackers to disclose information over a network. This vulnerability has a CVSS score of 7.4 and is classified as HIGH severity. Users of Microsoft Edge for Android should be aware of this vulnerability and take steps to patch their installations. The CVE record was published on 20 [truncated]

HIGH Microsoft CVE published 2026-08-04

CVE-2026-62870

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record for CVE-2026-62870 was published on 2026-08-04T00:17:37.813Z and has not been modified since then. The vulnerability is a use-after-free issue in Microsoft Office Excel, allowing unauthorized attackers to execute code over a network with a CVSS score of 8.8, classified as high severity. Affected product context suggests Exc [truncated]

MEDIUM Microsoft CVE published 2026-07-28

CVE-2026-62828

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-28T16:19:42.337Z and has not been modified since then. CVE-2026-62828 is a medium-severity vulnerability in Microsoft Edge for Android, caused by improper input validation. This allows an unauthorized attacker to perform tampering over a network. The vulnerability has a CVSS score of 5.4 and is trac [truncated]

HIGH Microsoft CVE published 2026-07-26

CVE-2026-57990

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-26T18:18:25.153Z and has not been modified since then. This HIGH severity vulnerability (CVSS Score: 7.4) in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network by accessing files or directories. Security teams should assess the potential impact of [truncated]

HIGH Microsoft CVE published 2026-07-26

CVE-2026-57989

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-26T18:18:25.033Z and has not been modified since then. This origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network. The vulnerability has a CVSS score of 7.4 and is classified as HIGH severity. Users of Microsoft Edge (Chromi [truncated]

MEDIUM Microsoft CVE published 2026-07-26

CVE-2026-57978

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-26T18:18:23.780Z and has not been modified since then. This origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network. The vulnerability has a CVSS score of 5.4 and a severity rating of MEDIUM. Security teams and administrators resp [truncated]

CRITICAL Microsoft CVE published 2026-07-24

CVE-2026-62835

CVE-2026-62835 is a critical vulnerability in Azure Portal due to improper authorization, allowing unauthorized attackers to disclose information over a network. The vulnerability has a CVSS score of 9.3 and is classified under CWE-285. Organizations and users of Azure Portal should be aware of this vulnerability and take necessary actions to mitigate potential risks. The CVE record was published on 2026- [truncated]

CRITICAL Microsoft CVE published 2026-07-24

CVE-2026-58630

The CVE-2026-58630 vulnerability is a critical security issue in Azure App Service For Linux, caused by improper access control. This allows unauthorized attackers to elevate privileges over a network. The vulnerability has a CVSS score of 10 and is classified as CWE-284. Security teams and administrators responsible for Azure App Service For Linux deployments should be aware of this critical vulnerabilit [truncated]

CRITICAL Microsoft CVE published 2026-07-24

CVE-2026-57106

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-24T15:18:39.633Z and has not been modified since then. This critical vulnerability (CVE-2026-57106) exists in Microsoft Purview Data Governance, allowing unauthorized attackers to elevate privileges via a server-side request forgery (SSRF) issue. The vulnerability has a CVSS score of 10 and is consi [truncated]

MEDIUM Microsoft CVE published 2026-07-24

CVE-2026-49159

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-24T01:16:40.230Z and has not been modified since then. CVE-2026-49159 is a medium-severity vulnerability in Microsoft Graph that allows an authorized attacker to disclose information over a network. The vulnerability has a CVSS score of 6.5 and is classified as CWE-200. Affected product deployments [truncated]

Known exploited Microsoft CVE published 2026-07-22

CVE-2026-50522

The Microsoft SharePoint Deserialization of Untrusted Data Vulnerability (CVE-2026-50522) is a concerning issue that allows attackers to execute arbitrary code on affected systems. This vulnerability has been added to the CISA Known Exploited Vulnerabilities catalog, indicating active exploitation. Security teams responsible for Microsoft SharePoint installations should prioritize patching to prevent pote [truncated]

CRITICAL Microsoft CVE published 2026-07-21

CVE-2025-66390

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-21T14:16:32.797Z and has not been modified since then. In Microsoft Azure API Management, when self-service signup with username/password Basic Authentication is enabled in one tenant (Tenant A), an attacker can bypass signup restrictions in another tenant (Tenant B) by manipulating the hostname or [truncated]

MEDIUM Microsoft CVE published 2026-07-17

CVE-2026-57980

CVE-2026-57980 is an authentication bypass vulnerability using an alternate path or channel in Microsoft Edge (Chromium-based). This vulnerability allows an unauthorized attacker to perform tampering over a network. The CVE record was published on 2026-07-17T22:17:59.917Z and has not been modified since then. Users of Microsoft Edge (Chromium-based) should be aware of this vulnerability and take necessary [truncated]

HIGH Microsoft CVE published 2026-07-17

CVE-2026-56171

CVE-2026-56171 is a HIGH severity vulnerability with a CVSS score of 7.1, affecting Windows RDP. The vulnerability allows an unauthorized attacker to disclose information over a network. Organizations using Windows RDP should review and apply patches to prevent information disclosure. This vulnerability is caused by exposure of private personal information to an unauthorized actor in Windows RDP.

MEDIUM Microsoft CVE published 2026-07-16

CVE-2026-62826

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-16T22:17:52.720Z and has not been modified since then. CVE-2026-62826 is a medium-severity vulnerability in Microsoft Office SharePoint due to improper neutralization of input during web page generation, allowing an authorized attacker to perform spoofing over a network. The vulnerability has a CVSS [truncated]

HIGH Microsoft CVE published 2026-07-16

CVE-2026-59117

CVE-2026-59117 is an integer overflow or wraparound vulnerability in Windows Terminal, allowing unauthorized attackers to execute code over a network. This vulnerability has a CVSS score of 7.5 and is classified as HIGH severity. The CVE record was published on 2026-07-16T22:17:52.597Z and has not been modified since then. Users should be aware of the potential impact on Windows Terminal deployments and r [truncated]

MEDIUM Microsoft CVE published 2026-07-16

CVE-2026-58643

CVE-2026-58643 is a cross-site scripting vulnerability in Windows Admin Center, allowing an unauthorized attacker to perform spoofing over a network. The vulnerability has a CVSS score of 6.1, indicating a medium severity level. Users of Windows Admin Center should review and apply necessary patches to prevent potential cross-site scripting attacks. The CVE record was published on 2026-07-16T22:17:52.370Z [truncated]

HIGH Microsoft CVE published 2026-07-16

CVE-2026-58598

CVE-2026-58598 is a high-severity vulnerability in Windows Backup Engine that allows an authorized attacker to elevate privileges locally. The vulnerability is caused by a race condition in the Windows Backup Engine. This vulnerability has a CVSS score of 7 and is classified as HIGH severity. Affected systems should be patched immediately to prevent local privilege escalation.

HIGH microsoft CVE published 2026-07-16

CVE-2026-59867

CVE-2026-59867 is a vulnerability in Kiota, an OpenAPI-based HTTP Client code generator. Prior to version 1.32.5, Kiota resolved OpenAPI $ref values by fetching remote http(s) URLs and reading local absolute or out-of-tree file paths. This allowed `kiota generate` on an attacker-controlled or attacker-influenced description to perform build-time SSRF, remote file inclusion, and local file inclusion by inl [truncated]

CRITICAL microsoft CVE published 2026-07-16

CVE-2026-59866

CVE-2026-59866 is a critical vulnerability in Kiota, an OpenAPI based HTTP Client code generator. Prior to version 1.32.5, Kiota emitted unsanitized clientClassName and clientNamespaceName values, allowing an attacker to write generated source outside the output directory and inject arbitrary text into class or namespace declarations. This issue can lead to arbitrary code injection and execution if an att [truncated]

CRITICAL microsoft CVE published 2026-07-16

CVE-2026-59865

CVE-2026-59865 is a critical vulnerability in Kiota, an OpenAPI based HTTP Client code generator. Prior to version 1.32.5, the `kiota info` command read and presented spec-supplied dependency install commands, potentially allowing command injection when run manually or through the Kiota VS Code extension. The vulnerability exists due to the lack of proper validation of OpenAPI descriptions, which can be e [truncated]

CRITICAL microsoft CVE published 2026-07-16

CVE-2026-59864

CVE-2026-59864 is a critical vulnerability in Kiota, an OpenAPI based HTTP Client code generator. The issue allows for path traversal or out-of-package file inclusion when generating Microsoft 365 Copilot and Teams plugin manifests. This vulnerability is fixed in version 1.32.5. Affected deployments should be reviewed for exposure, and owners should plan for updates or mitigations. Compensating controls m [truncated]

HIGH microsoft CVE published 2026-07-16

CVE-2026-57206

CVE-2026-57206 is a security vulnerability in SimpleChat, a secure AI conversation application. Prior to version 0.241.206, several plugin validation routes were not properly secured, allowing unauthorized access. The vulnerability exists in plugin validation routes in application/single_app/plugin_validation_endpoint.py, including POST /api/admin/plugins/test-instantiation, GET /api/admin/plugins/health- [truncated]

MEDIUM microsoft CVE published 2026-07-16

CVE-2026-57205

The SimpleChat application, prior to version 0.241.203, contained a vulnerability that allowed a low-privilege authenticated user to retrieve another user's email address, display name, and profile image without proper authorization. This issue was addressed in version 0.241.203. The vulnerability was present in the authenticated GET /api/user/info/<user_id> and GET /api/user/profile-image/<user_id> endpo [truncated]

CRITICAL microsoft CVE published 2026-07-16

CVE-2026-54733

The Microsoft 365 and Microsoft Entra ID Plugins for Moodle provide Office 365 and Azure Active Directory integration for Moodle. Prior to 4.5.6, 5.0.5, and 5.1.1, the Microsoft Office 365 Integration plugin local_o365 Teams SSO endpoint sso_login.php base64-decodes a JWT payload and authenticates users from the upn claim without verifying the JWT signature, allowing an unauthenticated attacker to forge a [truncated]

MEDIUM microsoft CVE published 2026-07-16

CVE-2026-54568

The CVE record was published on 2026-07-16T16:19:13.220Z and has not been modified since then. This vulnerability affects Microsoft UFO open-source framework versions 3.0.0 through 3.0.6. A client connected to the UFO WebSocket server as a DEVICE could call DEVICE_INFO_REQUEST with another device's target_id and receive that device's server-side system_info due to missing role and object-level authorizati [truncated]

HIGH microsoft CVE published 2026-07-16

CVE-2026-53598

CVE-2026-53598 debrief: AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-16T16:19:12.990Z and has not been modified since then. This vulnerability affects users of Prompty markdown file format (.prompty) for LLM prompts, especially those using versions prior to 2.0.0-beta.2. The vulnerability class involves path traversal and potential local file [truncated]

HIGH microsoft CVE published 2026-07-16

CVE-2026-53597

CVE-2026-53597 is a high-severity vulnerability in Prompty, a markdown file format for LLM prompts. The vulnerability allows an attacker to execute arbitrary JavaScript during prompt loading due to the @prompty/core TypeScript loader in runtime/typescript/packages/core/src/core/loader.ts using gray-matter without overriding executable js and javascript frontmatter engines. This issue was fixed in version [truncated]

HIGH microsoft CVE published 2026-07-16

CVE-2026-59863

CVE-2026-59863 is a vulnerability in Kiota, an OpenAPI based HTTP Client code generator. Prior to version 1.32.5, Kiota did not validate per-client or per-plugin outputPath values during kiota client generate and kiota plugin generate, allowing a malicious repository or pull request to write generated client files outside the workspace root on a developer or CI host. This issue enables attackers to potent [truncated]

HIGH microsoft CVE published 2026-07-16

CVE-2026-59862

CVE-2026-59862 is a high-severity vulnerability in Kiota, an OpenAPI based HTTP Client code generator. Prior to version 1.32.0, Kiota's Python generator allowed attacker-controlled enum value descriptions to flow through KiotaBuilder.SetEnumOptions into Documentation.DescriptionTemplate and PythonConventionService.RemoveInvalidDescriptionCharacters without newline sanitization. This could allow generated [truncated]

HIGH microsoft CVE published 2026-07-16

CVE-2026-59860

CVE-2026-59860 is a code-generation injection vulnerability in Kiota, an OpenAPI based HTTP Client code generator. The vulnerability affects the C# XML documentation-comment sink, allowing an attacker to inject additional code into generated C# clients by breaking out of single-line XML doc comments. This issue was fixed in version 1.32.3. Affected product deployments should be reviewed for exposure, and [truncated]

HIGH microsoft CVE published 2026-07-16

CVE-2026-59859

CVE-2026-59859 is a vulnerability in Kiota, an OpenAPI based HTTP Client code generator. Prior to version 1.32.4, Kiota's PHP generator embedded OpenAPI description, default fields, property names, and other schema-derived strings into PHP double-quoted literals without proper escaping, allowing for code injection. This issue allows attackers to inject arbitrary PHP code into generated model and request-b [truncated]

Known exploited Microsoft CVE published 2026-07-16

CVE-2026-58644

CVE-2026-58644 is a deserialization of untrusted data vulnerability in Microsoft SharePoint. This vulnerability allows an attacker to execute arbitrary code on the affected system, potentially leading to system compromise. The CVE record was published on 2026-07-16T00:00:00.000Z and has not been modified since then. Organizations using Microsoft SharePoint should prioritize patching this vulnerability, as [truncated]

HIGH Microsoft CVE published 2026-07-14

CVE-2026-50651

A high-severity vulnerability was found in .NET, allowing an unauthorized attacker to deny service over a network. The vulnerability has a CVSS score of 7.5 and is classified as HIGH. Microsoft .NET versions 8.0.0 to 8.0.29, 9.0.0 to 9.0.18, and 10.0.0 to 10.0.6 are affected. Microsoft has released patches for this vulnerability. The vulnerability is caused by the allocation of resources without limits or [truncated]

HIGH Microsoft CVE published 2026-07-14

CVE-2026-50650

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-14T20:17:38.230Z and has not been modified since then. This HIGH severity vulnerability in .NET Framework allows unauthorized local privilege escalation via code injection. The CVSS score is 7.8. Defenders should prioritize verification of .NET Framework inventory and compensating controls.

HIGH Microsoft CVE published 2026-07-14

CVE-2026-50649

CVE-2026-50649 is a HIGH severity vulnerability in .NET, allowing unauthorized attackers to execute code locally via deserialization of untrusted data. The CVE record was published on 2026-07-14T20:17:38.103Z and was last modified on 2026-07-21T00:17:22.260Z. This vulnerability affects .NET and allows an unauthorized attacker to execute code locally. The vulnerability has a CVSS score of 7.8 and a severit [truncated]

HIGH Microsoft CVE published 2026-07-14

CVE-2026-50648

A high-severity vulnerability was found in .NET Framework, allowing an unauthorized attacker to deny service over a network. The CVE record was published on 2026-07-14T20:17:37.937Z and was last modified on 2026-07-21T00:17:22.100Z. This vulnerability has a CVSS score of 7.5 and a severity of HIGH. Users of .NET Framework should be aware of this vulnerability and take necessary precautions to mitigate the [truncated]