VulnerabilityDeferred
CVE-2025-3576
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.
MEDIUM 5.9EPSS 0.34%
Does this matter?
Lower severity and a low EPSS score (0.34%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.34% probability · 28th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-328
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2025:11487
- https://access.redhat.com/errata/RHSA-2025:13664
- https://access.redhat.com/errata/RHSA-2025:13777
- https://access.redhat.com/errata/RHSA-2025:15000
- https://access.redhat.com/errata/RHSA-2025:15001
- https://access.redhat.com/errata/RHSA-2025:15002
- https://access.redhat.com/errata/RHSA-2025:15003
- https://access.redhat.com/errata/RHSA-2025:15004
- https://access.redhat.com/errata/RHSA-2025:8411
- https://access.redhat.com/errata/RHSA-2025:9418
- https://access.redhat.com/errata/RHSA-2025:9430
- https://access.redhat.com/security/cve/CVE-2025-3576
- https://bugzilla.redhat.com/show_bug.cgi?id=2359465
- https://web.mit.edu/kerberos/krb5-1.22/krb5-1.22.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00047.html
- https://cert-portal.siemens.com/productcert/html/ssa-577017.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.