CVE-2026-54119
HighCVSS 7.5Exploitation Probability (EPSS)
Elevated risk53th percentile - higher than 53% of all known CVEs
Summary
Infinite loop vulnerability in Windows Active Directory. An unauthorized attacker can remotely cause a denial of service.
Risk Assessment
The attack can overload the Active Directory server, preventing user authentication and authorization across the network.
Recommendation
Install the security update for Windows Active Directory from Microsoft.
Other vulnerabilities in Windows Active Directory
See all- CVE-2026-65777Medium
Inadequate encryption strength in Windows Active Directory allows an authorized attacker to bypass a security feature over a network.
- CVE-2026-49179High
Improper neutralization of special elements used in a command (command injection) in Windows Active Directory allows an unauthorized attacker to execute code over a network.
- CVE-2026-54115High
Integer overflow or wraparound in Windows Active Directory allows an authorized attacker to elevate privileges locally.
- CVE-2026-50682High
An out-of-bounds read vulnerability in Windows Active Directory. It allows an authorized attacker to deny service over a network.
- CVE-2026-55001High
Improper certificate validation in Windows Active Directory allows an authorized attacker to elevate privileges locally.
- CVE-2026-33826High
Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent network.
Original NVD description (English source)
Loop with unreachable exit condition ('infinite loop') in Windows Active Directory allows an unauthorized attacker to deny service over a network.