CVE-2026-83863
HighCVSS 7.8Summary
Heap-based buffer overflow in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker with local access could exploit this vulnerability to escalate privileges and take control of the system.
Recommendation
Apply Windows security updates that address this issue.
Other vulnerabilities in Servicing Stack Updates
See all- CVE-2026-96939High
Time-of-check time-of-use (TOCTOU) race condition in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.
- CVE-2026-85365High
Heap-based buffer overflow in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.
- CVE-2026-85318High
Heap-based buffer overflow in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.
- CVE-2026-83506High
Untrusted search path in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Heap-based buffer overflow in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS