← All advisories

High severity7.8NVD Advisory· Published Sep 8, 2026· Updated Sep 8, 2026

CVE-2026-69594

CVE-2026-69594

Description

Heap-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally.

Affected products

2

Microsoft/lsasrvllm-fuzzy
Microsoft/Local Security Authority Server (lsasrv)llm-fuzzy

Patches

Vulnerability mechanics

References

1

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69594nvd

News mentions

1

Massive Microsoft Patch Tuesday September 2026 – 973 Vulnerabilities Fixed, Including 2 Zero-Days
Cyber Security News · Sep 8, 2026