These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.
CVE-2026-41091 is a Microsoft Defender link following vulnerability rated CVSS 7.8 (High). The supplied corpus does not include affected versions, exploitation mechanics, or vendor remediation specifics, but CISA added the issue to its Known Exploited Vulnerabilities catalog on 2026-05-20 with a remediation due date of 2026-06-03. That KEV status makes this an urgent defensive item for teams that manage M [truncated]
This PatchSiren debrief is based on the supplied source corpus for CVE-2010-0806, a Use-After-Free Vulnerability in Microsoft Internet Explorer. The CVE record was published on 2026-05-20T00:00:00.000Z and has not been modified since then. Defenders responsible for Internet Explorer deployments, especially in environments where Internet Explorer is still in use, should assess exposure and apply mitigation [truncated]
This debrief provides an overview of CVE-2010-0249, a use-after-free vulnerability in Microsoft Internet Explorer. The CVE record was published on 2026-05-20T00:00:00.000Z and has not been modified since then. The vulnerability affects Microsoft Internet Explorer, and defenders should assess exposure and apply mitigations. The debrief aims to provide an executive overview covering affected product or comp [truncated]
CVE-2009-1537 is a Microsoft DirectX NULL Byte Overwrite vulnerability that CISA has included in its Known Exploited Vulnerabilities catalog. In the supplied timeline, CISA added the entry on 2026-05-20 and set remediation due by 2026-06-03. Because it is KEV-listed, defenders should treat it as a priority item: validate whether any affected Microsoft DirectX components remain in use, apply Microsoft’s gu [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-05-20T00:00:00.000Z and has not been modified since then. This critical buffer overflow vulnerability in Microsoft Windows has been exploited in the wild. Defenders should assess exposure and prioritize mitigation. The CVE record indicates a CVSS score of 9.8, highlighting the severity of this vulnerab [truncated]
A remote code execution vulnerability in Microsoft Edge (Chromium-based) allows an attacker to execute arbitrary code on affected systems. The vulnerability is rated HIGH severity with a CVSS 3.1 score of 8.8, indicating significant risk due to network attack vector, low attack complexity, and no required privileges—though user interaction is required. The affected product is Microsoft Edge Chromium prior [truncated]
A spoofing vulnerability in Microsoft Edge (Chromium-based) allows an attacker to manipulate UI elements to deceive users. The vulnerability has a CVSS 3.1 score of 5.4 (Medium severity) and is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation). Affected versions are prior to 148.0.3967.70. Microsoft has released a security update addressing this issue.
CVE-2026-45492 is a medium-severity vulnerability in Microsoft Edge (Chromium-based) resulting from improper input validation (CWE-20). An unauthenticated attacker can exploit this flaw over a network to bypass a security feature. The vulnerability was published on May 18, 2026, and last modified on May 19, 2026. Microsoft has issued a vendor advisory addressing this issue. Affected versions are those pri [truncated]
CVE-2026-42822 is a Critical authentication flaw affecting Azure Local Disconnected Operations. According to the official CVE description, an unauthorized attacker could elevate privileges over the network. NVD published the record on 2026-05-18 and marked it as Awaiting Analysis at the time of the supplied source snapshot, while referencing Microsoft’s MSRC advisory page for the issue.
Microsoft APM versions prior to 0.13.0 contain a Windows-specific path traversal vulnerability in the legacy-bundle probe used during `apm install <bundle>` operations on Python 3.10 and 3.11. When processing local `.tar.gz` archives that are not recognized as plugin-format bundles, APM attempts to determine if they are legacy `--format apm` bundles. This probe uses `tar.extractall()` without proper valid [truncated]
Microsoft APM (AI Package Manager) versions 0.5.4 through 0.12.4 contain a symlink-following vulnerability in two primitive integrators within apm-cli. The integrators use bare Path.glob() and Path.rglob() calls to enumerate package files, then read each match with Path.read_text(), which transparently follows symbolic links. A malicious symlink committed inside a remote APM dependency under .apm/prompts/ [truncated]
Microsoft APM (AI Package Manager) versions prior to 0.8.12 contain a path traversal vulnerability in the plugin installation process. The APM tool normalizes marketplace plugins by copying components referenced in plugin.json manifest fields (agents, skills, commands, hooks) into the .apm/ directory. These manifest paths are attacker-controlled without sufficient validation, allowing malicious plugins to [truncated]
CVE-2026-42897 is a Microsoft Exchange Server cross-site scripting vulnerability that CISA added to the Known Exploited Vulnerabilities (KEV) catalog on 2026-05-15. KEV inclusion means defenders should treat this as a high-priority issue, even though the supplied corpus does not include a CVSS score, affected version list, or exploit details. The remediation due date in the supplied timeline is 2026-05-29 [truncated]
CVE-2026-42832 is a HIGH severity (CVSS 7.7) improper access control vulnerability in Microsoft Office that allows an unauthorized attacker to perform spoofing attacks locally. The vulnerability was published on 2026-05-12 and last modified on 2026-05-19. Affected products include Microsoft Excel for Android (versions prior to 16.0.19822.20190), Microsoft Word for Android (versions prior to 16.0.19822.201 [truncated]
CVE-2026-42831 is a high-severity Microsoft Office issue published on 2026-05-12 and updated on 2026-05-19. The official record describes a heap-based buffer overflow that could let an unauthorized attacker execute code locally. NVD links the issue to Microsoft Office builds on Android and macOS, and Microsoft’s advisory is the primary vendor reference.
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-05-12T18:17:22.210Z and has not been modified since then. The NVD entry is currently Analyzed. This injection vulnerability in GitHub Copilot and Visual Studio allows an unauthorized attacker to bypass a security feature over a network, with a high CVSS score of 8.8.
A medium-severity information disclosure vulnerability in Microsoft Office Word, published 2026-05-12 and last modified 2026-05-19. The flaw stems from external control of file name or path (CWE-73), allowing an unauthenticated remote attacker to disclose information over a network when a user interacts with a malicious document. CVSS 3.1 score of 4.3 reflects network attack vector, low attack complexity, [truncated]
CVE-2026-40420 is a high-severity local privilege escalation vulnerability in Microsoft Office Click-To-Run, published by NVD on 2026-05-12 and last modified on 2026-05-19. The flaw stems from improper access control (CWE-284) and allows an authorized attacker with local access to elevate privileges. The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H) indicates a local attack vector with low complex [truncated]
A use-after-free vulnerability in Microsoft Office allows an authorized attacker to elevate privileges locally. The vulnerability was published on 2026-05-12 and last modified on 2026-05-19. Microsoft has issued a vendor advisory for this issue.
CVE-2026-40418 is a use-after-free vulnerability in Microsoft Office Click-To-Run that allows an authorized attacker to elevate privileges locally. The vulnerability was published on May 12, 2026, and last modified on May 19, 2026. It carries a CVSS 3.1 score of 7.8 (HIGH severity) with the vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, indicating local attack vector, low attack complexity, low priv [truncated]
A UI misrepresentation vulnerability in Microsoft Edge (Chromium-based) allows network-based spoofing attacks. The vulnerability, classified as CWE-451 (User Interface Misrepresentation of Critical Information), enables an unauthorized attacker to present misleading interface elements to users over a network. Microsoft has addressed this issue in Edge Chromium version 148.0.3967.55 and later. The CVSS 3.1 [truncated]
A local privilege escalation vulnerability exists in the Azure Connected Machine Agent due to improper access control (CWE-284). An attacker with local access and low privileges can exploit this flaw to gain elevated privileges on affected systems. The vulnerability is rated HIGH severity (CVSS 7.8) with a local attack vector, low attack complexity, and no user interaction required. Successful exploitatio [truncated]
CVE-2026-40379 is a critical Microsoft Entra ID vulnerability published on 2026-05-12 and last modified on 2026-05-21. The official NVD record describes it as an exposure of sensitive information to an unauthorized actor that can enable spoofing over a network. NVD rates the issue CVSS 9.3 (AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N), which indicates network reachability, no privileges required, and meaningful c [truncated]
A medium-severity information disclosure vulnerability in Microsoft Power Automate for Desktop allows an authenticated attacker to expose sensitive data over a network. The vulnerability, published by NVD on May 12, 2026 and last modified on May 19, 2026, stems from improper exposure of sensitive information to unauthorized actors (CWE-200). Affected versions are those prior to 2.67. Microsoft has release [truncated]
CVE-2026-40370 is a HIGH severity vulnerability in Microsoft SQL Server that allows an authorized attacker to execute code over a network. The vulnerability has a CVSS score of 8.8 and was published on May 12, 2026. It affects various versions of SQL Server, including 2016, 2017, 2019, 2022, and 2025. The vulnerability is caused by an external control of file name or path, which allows an attacker to exec [truncated]
CVE-2026-40367 is a high-severity Microsoft flaw involving an untrusted pointer dereference (CWE-822). The published description says an unauthorized attacker can execute code locally, and the supplied CVSS vector rates it 8.4/High. Microsoft’s advisory-linked NVD record also expands the affected scope beyond Word to include several Office and SharePoint Server products, so remediation should be prioritiz [truncated]
CVE-2026-40366 is a use-after-free vulnerability in Microsoft Office Word that allows an unauthorized attacker to execute code locally. The vulnerability was published in the NVD on May 12, 2026, with a subsequent modification on May 19, 2026. Microsoft has assigned this a CVSS 3.1 score of 8.4 (HIGH), with the vector indicating local attack vector, low attack complexity, no privileges required, no user i [truncated]
CVE-2026-40364 is a high-severity type confusion vulnerability in Microsoft Office Word that enables local code execution by an unauthorized attacker. The flaw stems from improper type handling when Word processes certain document content, allowing memory corruption that can be exploited for arbitrary code execution in the context of the current user. Microsoft has assigned this a CVSS 3.1 score of 8.4, r [truncated]
CVE-2026-40363 is a Microsoft Office heap-based buffer overflow that can allow an unauthorized attacker to execute code locally. NVD lists the issue as analyzed and rates it HIGH with a CVSS 3.1 score of 8.4 (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). The affected products include Microsoft 365 Apps, Office 2016, Office 2019, and Office Long Term Servicing Channel 2021 and 2024 variants across the listed archi [truncated]
A heap-based buffer overflow vulnerability in Microsoft Office Excel allows local code execution by an unauthorized attacker. The vulnerability was published on May 12, 2026, and last modified on May 19, 2026. Microsoft has issued a vendor advisory for this vulnerability.
