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PatchSiren cyber security CVE debrief

CVE-2026-61357 Microsoft CVE debrief

A vulnerability in Application Information Services allows an authorized attacker to elevate privileges locally. This issue affects multiple Windows 11 and Windows Server versions. The vulnerability exists due to improper handling of application information, leading to a local privilege elevation risk. System administrators and security teams should assess exposure and apply patches to mitigate risks. The CVE record and source item provide details on the vulnerability, but additional information from official sources may be necessary to fully assess the issue. Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. Review the 官方

Vendor
Microsoft
Product
Windows 11 Version 24H2
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-11
Original CVE updated
2026-10-08
Advisory published
2026-08-11
Advisory updated
2026-10-08

Who should care

System administrators and security teams responsible for Windows 11 and Windows Server systems should assess exposure and apply patches to mitigate local privilege elevation risks.

Why it matters

CVE-2026-61357 is a high-severity elevation of privilege vulnerability in Application Information Services. While exploitation details are limited, defenders should prioritize patching affected Windows systems to mitigate local privilege elevation risks. System administrators and security teams should assess exposure, verify affected versions, and apply vendor-provided patches.

  • Local privilege elevation can lead to increased access and potential system compromise
  • Requires verification of affected versions and application of vendor-provided patches
  • System administrators must assess exposure and prioritize patching for Windows 11 and Windows Server systems

Technical summary

The vulnerability exists in Application Information Services, allowing an authorized attacker to elevate privileges locally. Affected products include Windows 11 Version 24H2, Windows 11 Version 25H2, Windows 11 version 26H1, Windows Server 2025, and Windows Server 2025 (Server Core installation).

Defensive priority

High

Recommended defensive actions

  • Review and apply the vendor-provided patch for CVE-2026-61357
  • Assess exposure of Windows 11 Version 24H2, Windows 11 Version 25H2, Windows 11 version 26H1, Windows Server 2025, and Windows Server 2025 (Server Core installation) systems
  • Verify local privilege elevation risks in Application Information Services

Evidence notes

The CVE record and source item provide details on the vulnerability. However, additional information from official sources may be necessary to fully assess the issue.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-61357 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-61357

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-61357 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-61357

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.