Is CVE-2004-2479 in the CISA KEV catalog?

No. CVE-2004-2479 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2004-2479?

CVE-2004-2479 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2004-2479?

CVE-2004-2479 has an EPSS score of 2.08% (79th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2004-2479?

Upgrade squid on debian 11 to 2.5.8 or later.

CVE & CISA-KEV Catalog

CVE-2004-2479

MEDIUMEPSS 79th pctl

5.0

CVSS v2

NVD

Description

Squid Web Proxy Cache 2.5 might allow remote attackers to obtain sensitive information via URLs containing invalid hostnames that cause DNS operations to fail, which results in references to previously used error messages.

How to fix

Remediation Available

squidDebian

Fixed in:2.5.8CVE-2004-2479

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

2.08%probability of exploitation in 30 days

79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

Patch4

Other references6

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.