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Tool Directory

CVE-2025-53779

HighPublished

Windows Kerberos Elevation of Privilege Vulnerability

Published: Aug 12, 2025
Updated: Feb 26, 2026
Assigning CNA: microsoft
Evidence observed: Aug 8, 2026

Primary CVSS

7.2/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

2.7%

Low · next 30 days

Percentile: 85.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Relative path traversal in Windows Kerberos allows an authorized attacker to elevate privileges over a network.

Sources

Invoke-BadSuccessor.ps1Exploit
PowerShell Script to automatically abuse the BadSuccessor vulnerability (CVE-2025-53779)
cve-2025-53779-kerberos_bypass_reproductionPoC
Reproduction of cve-2025-53779-kerberos_bypass_reproduction

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