CVE-2026-69777

Heap-based buffer overflow in Windows DHCP Client allows an authorized attacker to elevate privileges over an adjacent network.

  • Published Sep 8, 2026
  • CVSS 8.0 high
  • 0.6% chance of exploitation in the next 30 days (EPSS)
  • A fix is available

Affected software

In the news

CVE-2026-69777 at the National Vulnerability Database