CVE-2026-49921

In multiple locations, there is a possible memory safety issue due to a heap buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.

  • Published Sep 8, 2026
  • CVSS 9.8 critical
  • 0.4% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-49921 at the National Vulnerability Database