CVE-2026-50380
A heap-based buffer overflow in Windows GDI+ lets an unauthenticated attacker execute arbitrary code over the network. The vulnerability is rated critical with a CVSS score of 9.6 and affects multiple Windows 10 and 11 releases. No official fix or known exploit is documented in the provided sources.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
Microsoft Windows 10 versions 1607, 1809, 21H2, 22H2 and Windows 11 versions 24H2, 25H2, 26H1.
Real-world impact
An attacker who can send specially crafted data to a vulnerable system could gain full control, leading to data theft, ransomware, or further network compromise.
Why this severity
CVSS v3.1 base score 9.6 (Critical) due to network‑attack vector, low attack complexity, no privileges or user interaction required, and high impacts to confidentiality, integrity, and availability.
What to do about it
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
No fix documented in sources
Timeline
- Jul 14, 2026 · 20d agoPublishedDisclosed and added to the National Vulnerability Database.
- Jul 22, 2026 · 12d agoAdvisory updatedThe NVD record was last revised.
How it’s attacked
References & advisories
- msrc.microsoft.com/update-guide/vulnerability/…patchvendor advisory