CVE-2026-62818
HighCVSS 8.8Exploitation Probability (EPSS)
Elevated risk58th percentile - higher than 58% of all known CVEs
Summary
Use after free in Active Directory Certificate Services (AD CS) allows an authorized attacker to execute code over a network.
Risk Assessment
An authorized attacker could exploit this vulnerability to execute code in the context of AD CS, potentially leading to privilege escalation.
Recommendation
Install the latest Windows security updates for the AD CS service.
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-2026-62810High
Heap-based buffer overflow in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate privileges locally.
- 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)
Use after free in Active Directory Certificate Services (AD CS) allows an authorized attacker to execute code over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS