Windows Kerberos
CVE-2025-53779 — Windows Kerberos Elevation of Privilege Vulnerability
Executive Summary
Relative path traversal in Windows Kerberos allows an authorized attacker to elevate privileges over a network.
Overview
7.2
CVSS HIGH
Moderate
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
High
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Functional
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.7
EPSS Score
0.02603
probability of exploitation in the next 30 days
0.83995 percentile - updated 2026-08-14
View on FIRST.org
Exploits & PoC
3 public PoCsUnverified third-party code
Public proof-of-concept repositories aggregated from PoC-in-GitHub. They are not reviewed and may be incomplete, non-functional, or malicious — inspect the code before running anything.
| Repository | Stars | Published | Description |
|---|---|---|---|
| b5null/Invoke-BadSuccessor.ps1 | 47 | 2025-11-19 | PowerShell Script to automatically abuse the BadSuccessor vulnerability (CVE-2025-53779) |
| Musa-xvi/Active-Directory-BadSuccessor | 0 | 2026-06-05 | A TryHackme room covering the CVE-2025-53779 exploitation using windows |
| razureink/cve-2025-53779-kerberos_bypass_reproduction | 0 | 2026-07-24 | Reproduction of cve-2025-53779-kerberos_bypass_reproduction |
Detection Rules
No public Sigma or Nuclei detection rule has been mapped to this CVE yet. Coverage is concentrated on exploited / high-profile vulnerabilities; check SigmaHQ for updates.
Acknowledgments
References
On This Page