CVE-2025-3576
krb5 - security update
5.9
MEDIUM
CVSS 3.1
EPSS 0.25%
Description
A vulnerability in the MIT Kerberos implementation allows GSSAPI-protected messages using RC4-HMAC-MD5 to be spoofed due to weaknesses in the MD5 checksum design. If RC4 is preferred over stronger encryption types, an attacker could exploit MD5 collisions to forge message integrity codes. This may lead to unauthorized message tampering.
How to fix CVE-2025-3576
To remediate CVE-2025-3576, upgrade the affected package to a fixed version below.
- —upgrade to 1.18.3-6+deb11u7 or later
- —upgrade to 1.18.3-6+deb11u7 or later
Is CVE-2025-3576 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.18.3-6+deb11u7
- from 0, < 1.18.3-6+deb11u7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |