CVE-2005-0174

CVE-2005-0174 is a medium-severity vulnerability in Squid with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 51% places it in the 99th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Squid 2.5 up to 2.5.STABLE7 allows remote attackers to poison the cache or conduct certain attacks via headers that do not follow the HTTP specification, including (1) multiple Content-Length headers, (2) carriage return (CR) characters that are not part of a CRLF pair, and (3) header names containing whitespace characters.

Frequently asked questions

What is CVE-2005-0174?
Squid 2.5 up to 2.5.STABLE7 allows remote attackers to poison the cache or conduct certain attacks via headers that do not follow the HTTP specification, including (1) multiple Content-Length headers, (2) carriage return (CR) characters that are not part of a CRLF pair, and (3) header names containing whitespace characters.
How severe is CVE-2005-0174?
CVE-2005-0174 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2005-0174 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 51% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-0174?
CVE-2005-0174 primarily affects Squid. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-0174?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-0174 published?
CVE-2005-0174 was published on 2005-02-07 and last updated on 2026-06-16.

References

Affected products (16)

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