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CVE-2005-0174

37
FAUCET Score

CVE-2005-0174 describes a cache poisoning vulnerability affecting Squid proxy versions up to 2.5.STABLE7. This flaw allows remote attackers to manipulate cached content or launch other attacks by sending malformed HTTP headers, such as multiple Content-Length headers, lone carriage returns, or header names with whitespace. With a CVSS score of 5.0, this vulnerability is easily exploitable over the network without authentication, potentially leading to data integrity issues. Despite its age and high FAUCET Risk Score of 98/100, there is no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
2.5.6CPE matchmatch criteria
cpe:2.3:a:squid:squid:2.5.6:*:*:*:*:*:*:*
2.5.stable1CPE matchmatch criteria
cpe:2.3:a:squid:squid:2.5.stable1:*:*:*:*:*:*:*
2.5.stable2CPE matchmatch criteria
cpe:2.3:a:squid:squid:2.5.stable2:*:*:*:*:*:*:*
2.5.stable3CPE matchmatch criteria
cpe:2.3:a:squid:squid:2.5.stable3:*:*:*:*:*:*:*
2.5.stable4CPE matchmatch criteria
cpe:2.3:a:squid:squid:2.5.stable4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
50.78%
Probability of exploitation in next 30 days
EPSS Percentile
98.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.5078 is in the 99th percentile among its peer group of 23,705 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: squid-7:2.5.STABLE3-6.3E.7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: squid-7:2.5.STABLE6-3.4E.3
View patch

Vendor Advisories (1)

redhatCVE-2005-0174

security flaw

Jan 31, 2005

References

distro.conectiva.com.br / atualizacoes
Vendor Advisory
fedoranews.org / updates/FEDORA--.shtml
marc.info
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10656
www3.br.squid-cache.org / Advisories/SQUID-2005_4.txt
kb.cert.org / vuls/id/768702
Third Party AdvisoryUS Government Resource
mandriva.com / security/advisories
novell.com / linux/security/advisories/2005_06_squid.html
Vendor Advisory
redhat.com / archives/fedora-announce-list/2005-May/msg00025.html
redhat.com / support/errata/RHSA-2005-060.html
Patch
redhat.com / support/errata/RHSA-2005-061.html
Patch
securityfocus.com / bid/12412
squid-cache.org / Versions/v2/2.5/bugs
Vendor Advisory