CVE-2026-62810
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk25th percentile - higher than 25% of all known CVEs
Summary
Heap-based buffer overflow in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker with local access could gain elevated privileges, potentially compromising system integrity and certificate services.
Recommendation
Install security updates for AD CS and restrict local access to critical systems.
Other vulnerabilities in Active Directory Certificate Services
See all- CVE-2026-83666High
Concurrent execution using shared resource with improper synchronization ('race condition') in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate privileges locally.
- CVE-2026-69624Medium
An incomplete list of disallowed inputs in Active Directory Certificate Services (AD CS) allows an authorized attacker to perform tampering over a network.
- CVE-2026-69395Medium
The vulnerability in Active Directory Certificate Services (AD CS) involves the use of an externally-controlled format string. This allows an authorized attacker to disclose information over a network.
- CVE-2026-62818High
Use after free in Active Directory Certificate Services (AD CS) allows an authorized attacker to execute code over a network.
- CVE-2026-54121High
An improper authorization vulnerability in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate privileges over a network.
Original NVD description (English source)
Heap-based buffer overflow in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

