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Vulnerability record · CVE-2025-24528 · published 16 January 2026

CVE-2025-24528: Integer overflow vulnerability

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.

7.1 CVSS 3.1 High EPSS 0.51% · top 58.5% CWE-190 · Integer overflow Deferred
7.1CVSS 3.1 base score
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

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.

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

References

LinkTags
https://github.com/krb5/krb5/commit/78ceba024b64d49612375be4a12d1c066b0bfbd0
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

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Source: NIST National Vulnerability Database (record CVE-2025-24528), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.