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CVE-2026-62890 Microsoft CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-11T17:18:40.353Z and has not been modified since then. The NVD entry is currently Analyzed. CVE-2026-62890 is a heap-based buffer overflow vulnerability in Windows GDI+, allowing an authorized attacker to execute code locally with a CVSS score of 7.8 and HIGH severity. Multiple Windows versions are affected, including Windows 10, Windows 11, and various Windows Server editions. Microsoft has released a patch and vendor advisory for this vulnerability. Organizations should prioritize patching due to the HIGH CVSS score and risk of local code execution. The vulnerability affects various Windows versions and server releases. Microsoft's patch and vendor advisory are available for CVE-2026-62890.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-11
Original CVE updated
2026-08-16
Advisory published
2026-08-11
Advisory updated
2026-08-16

Who should care

Organizations using vulnerable Windows versions and servers should prioritize patching CVE-2026-62890 due to the HIGH CVSS score and risk of local code execution.

Technical summary

CVE-2026-62890 is a heap-based buffer overflow vulnerability in Windows GDI+. An authorized attacker can exploit this vulnerability to execute code locally. The vulnerability has a CVSS score of 7.8 and HIGH severity. Multiple Windows versions are affected, including Windows 10, Windows 11, and various Windows Server editions. Microsoft has released a patch and vendor advisory for this vulnerability.

Defensive priority

Patch CVE-2026-62890 immediately due to HIGH CVSS score of 7.8 and local code execution risk.

Recommended defensive actions

  • Apply the Microsoft patch for CVE-2026-62890 immediately
  • Inventory and prioritize Windows systems for patch deployment
  • Monitor for potential local exploitation attempts
  • Implement compensating controls for vulnerable systems if patching is delayed

Evidence notes

The CVE-2026-62890 record indicates a heap-based buffer overflow in Windows GDI+ with a CVSS score of 7.8 and HIGH severity. Multiple Windows versions and server releases are listed as vulnerable, including Windows 10, Windows 11, and various Windows Server editions. Microsoft has provided a patch and vendor advisory.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-62890 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-62890

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

  • CVE-2026-62890 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-62890

    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.