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CVE-2025-24528

Good to know:

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Date: January 15, 2026

In MIT Kerberos 5 (aka krb5) before 1.22 (with incremental propagation), there is an integer overflow for a large update size to resize() in kdb_log.c. An authenticated attacker can cause an out-of-bounds write and kadmind daemon crash.

Severity Score

Related Resources (5)

https://github.com/krb5/krb5/compare/krb5-1.21.3-final...krb5-1.22-final
https://lists.debian.org/debian-lts-announce/2025/02/msg00029.html
https://nvd.nist.gov/vuln/detail/CVE-2025-24528
https://github.com/krb5/krb5/commit/78ceba024b64d49612375be4a12d1c066b0bfbd0
https://www.mend.io/vulnerability-database/CVE-2025-24528

Severity Score

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

Top Fix

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Upgrade Version

Upgrade to version https://github.com/krb5/krb5.git - krb5-1.22-final

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): HIGH

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