CVE-2023-21817
HighCVSS 7.8Exploitation Probability (EPSS)
Elevated risk53th percentile - higher than 53% of all known CVEs
Summary
An elevation of privilege vulnerability exists in Windows Kerberos. The description lacks technical details, but the vulnerability could allow an attacker to gain elevated privileges in a domain environment.
Risk Assessment
The risk for the organization is potential privilege escalation in the Kerberos service, which could lead to compromise of domain accounts and resources.
Recommendation
It is recommended to apply security updates for Windows Kerberos as soon as possible to prevent exploitation.
Other vulnerabilities in Windows Kerberos
See all- CVE-2022-37967High
Elevation of privilege vulnerability in Windows Kerberos. It could allow an attacker to gain higher privileges in a domain.
- CVE-2026-62773High
Use after free in Windows Kerberos allows an authorized attacker to elevate privileges locally.
- CVE-2026-62766High
Double free in Windows Kerberos allows an authorized attacker to elevate privileges locally.
- CVE-2026-62754High
Heap-based buffer overflow in Windows Kerberos allows an authorized attacker to elevate privileges locally.
- CVE-2026-62752High
Heap-based buffer overflow in Windows Kerberos allows an authorized attacker to elevate privileges locally.
- CVE-2026-47288High
Integer overflow or wraparound vulnerability in Windows Kerberos. Allows an authorized attacker to execute code over an adjacent network.
- CVE-2026-42914Medium
A vulnerability in Windows Kerberos allows an authorized attacker to cause a denial of service over the network via an out-of-bounds read.
- CVE-2026-42903Medium
A null pointer dereference vulnerability in Windows Kerberos allows an authorized attacker to perform a Denial of Service (DoS) attack over a network.
- CVE-2026-20849High
Vulnerability in Windows Kerberos relies on untrusted inputs in a security decision. This allows an authorized attacker to elevate privileges over a network.
- CVE-2024-38239High
A vulnerability in Windows Kerberos allows elevation of privilege. An attacker could exploit this flaw to gain higher privileges on the system.
Original NVD description (English source)
Windows Kerberos Elevation of Privilege Vulnerability