Heap-based Buffer Overflow The advisory has been revoked - it doesn't affect any version of package squid (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS7-SQUID-11485077
- published6 Aug 2025
- disclosed1 Aug 2025
Introduced: 1 Aug 2025
CVE-2025-54574 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:7.
NVD Description
Note: Versions mentioned in the description apply only to the upstream squid package and not the squid package as distributed by Centos.
Squid is a caching proxy for the Web. In versions 6.3 and below, Squid is vulnerable to a heap buffer overflow and possible remote code execution attack when processing URN due to incorrect buffer management. This has been fixed in version 6.4. To work around this issue, disable URN access permissions.
References
- https://access.redhat.com/security/cve/CVE-2025-54574
- https://github.com/squid-cache/squid/commit/a27bf4b84da23594150c7a86a23435df0b35b988
- https://github.com/squid-cache/squid/releases/tag/SQUID_6_4
- https://github.com/squid-cache/squid/security/advisories/GHSA-w4gv-vw3f-29g3
- https://lists.debian.org/debian-lts-announce/2025/09/msg00027.html
- http://www.openwall.com/lists/oss-security/2025/11/05/5