Vulnerability in Red Hat Discovery 2
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. 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (25.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Red Hat Discovery 2 — versions 2.0.0-1752592913, sha256:c499a099e03c7488ffe50529a34723ade191a89fcfc59d1f0edd01db2b579ca3
- Red Hat Enterprise Linux 10 — versions 0:1.21.3-8.el10_0
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:1.18.2-32.el8_10
- Red Hat Enterprise Linux 8.2 Advanced Update Support — versions 0:1.17-19.el8_2.3
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support — versions 0:1.18.2-9.el8_4.3
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On — versions 0:1.18.2-9.el8_4.3
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support — versions 0:1.18.2-16.el8_6.4
- Red Hat Enterprise Linux 8.6 Telecommunications Update Service — versions 0:1.18.2-16.el8_6.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2025:11487 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:13664 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:13777 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:15000 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:15001 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:15002 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:15003 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:15004 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:8411 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:9418 (vendor-advisory)
Frequently asked questions
- What is CVE-2025-3576?
- CVE-2025-3576 is a medium-severity vulnerability in Red Hat Discovery 2, classified under Use of Weak Hash. CVSS score: 5.9/10. Published 2025-04-15.
- How severe is CVE-2025-3576?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2025-3576 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.