cve.bz

CVE-2025-54574

9.8 criticalEPSS 24%

Critical (9.8) in squid-cache squid. EPSS 24% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
24% chance of exploitation in the next 30 days; higher than 97% of CVEs (scores of 2026-10-31)
CWEs
CWE-787, CWE-122
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON