CVE-2026-21087

Out-of-bounds write in libmdnie.so prior to SMR Sep-2026 Release 1 allows local attackers to execute arbitrary code with system server privilege.

  • Published Sep 9, 2026
  • CVSS 8.6 high
  • 0.1% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-21087 at the National Vulnerability Database