CVE-2026-49164
HighCVSS 8.1Exploitation Probability (EPSS)
Low risk47th percentile - higher than 47% of all known CVEs
Summary
A heap-based buffer overflow in Active Directory Domain Services allows an unauthorized attacker to execute code over a network.
Risk Assessment
An attacker can remotely compromise a domain controller, risking the entire Active Directory infrastructure and access to all resources.
Recommendation
Immediately install the security update for Windows Server and restrict AD DS access to trusted networks only.
Other vulnerabilities in Active Directory Domain Services
See all- CVE-2021-42287HighActively exploited
Active Directory Domain Services Elevation of Privilege Vulnerability. Technical details are not provided in the description.
- CVE-2021-42278HighActively exploited
Active Directory Domain Services Elevation of Privilege Vulnerability. Technical details are not provided in the description.
- CVE-2026-50366Medium
A null pointer dereference in Active Directory Domain Services allows an authorized attacker to cause a denial of service over the network.
- CVE-2026-57976Medium
A null pointer dereference in Active Directory Domain Services allows an authorized attacker to cause a denial of service over the network.
- CVE-2026-49178High
A heap-based buffer overflow in Active Directory Domain Services allows an authorized attacker to execute code remotely over a network.
- CVE-2026-45648High
Stack-based buffer overflow in Active Directory Domain Services allows an authorized attacker to execute code over a network.
- CVE-2021-42291High
Elevation of privilege vulnerability in Active Directory Domain Services. Allows an attacker to gain elevated privileges in the domain.
- CVE-2021-42282High
Elevation of privilege vulnerability in Active Directory Domain Services. Allows an attacker to gain elevated privileges in the domain.
Original NVD description (English source)
Heap-based buffer overflow in Active Directory Domain Services allows an unauthorized attacker to execute code over a network.