CVE-2026-69277
HighCVSS 7.8Summary
A stack-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker could exploit this to take control of the lsasrv process, potentially leading to full system compromise.
Recommendation
Apply the latest Windows security updates.
Other vulnerabilities in Microsoft Local Security Authority Server
See all- CVE-2026-69594High
Heap-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally.
- CVE-2026-69365High
Out-of-bounds read in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges over a network.
- CVE-2026-62784High
Heap-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to execute code over a network.
Original NVD description (English source)
Stack-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally.

