Is CVE-2004-2480 in the CISA KEV catalog?

No. CVE-2004-2480 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2004-2480?

CVE-2004-2480 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2004-2480?

CVE-2004-2480 has an EPSS score of 3.03% (86th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2004-2480?

Upgrade squid on debian 11 to 2.5 or later.

CVE & CISA-KEV Catalog

CVE-2004-2480

MEDIUMEPSS 86th pctl

5.0

CVSS v2

NVD

Description

Squid Web Proxy Cache 2.3.STABLE5 allows remote attackers to bypass security controls and access arbitrary websites via "@@" sequences in a URL within Internet Explorer.

How to fix

Remediation Available

squidDebian

Fixed in:2.5CVE-2004-2480

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

3.03%probability of exploitation in 30 days

86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Exploit2

Other references1

exchange.xforce.ibmcloud.com

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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.