CVE-2005-0211

Buffer overflow in wccp.c in Squid 2.5 before 2.5.STABLE7 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long WCCP packet, which is processed by a recvfrom function call that uses an incorrect length parameter.

Published: 2005-05-02 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-0211 is rated Moderate Risk (59.1/100): CVSS High severity, with high exploitation likelihood (EPSS 22.15%, 97th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2005-0211

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 45.32% 22.15% -23.17%
2 2026-02-11 41.52% 45.32% +3.80%
3 2025-06-01 — 41.52% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-0211

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2005-0211

OS Trackers for CVE-2005-0211

vendor priority summary link
debian not yet assigned CVE-2005-0211 not yet assigned priority: Debian including 1 source packages (squid), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2005-0211
redhat high — https://access.redhat.com/security/cve/CVE-2005-0211
ubuntu medium CVE-2005-0211 medium priority: Ubuntu including 1 source packages (squid), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. https://ubuntu.com/security/CVE-2005-0211

Affected software / configurations for CVE-2005-0211

Vendor Product Version Raw CPE
squid-cache squid 2.5.stable1 cpe:2.3:a:squid-cache:squid:2.5.stable1:*:*:*:*:*:*:*
squid-cache squid 2.5.stable2 cpe:2.3:a:squid-cache:squid:2.5.stable2:*:*:*:*:*:*:*
squid-cache squid 2.5.stable3 cpe:2.3:a:squid-cache:squid:2.5.stable3:*:*:*:*:*:*:*
squid-cache squid 2.5.stable4 cpe:2.3:a:squid-cache:squid:2.5.stable4:*:*:*:*:*:*:*
squid-cache squid 2.5.stable5 cpe:2.3:a:squid-cache:squid:2.5.stable5:*:*:*:*:*:*:*
squid-cache squid 2.5.stable6 cpe:2.3:a:squid-cache:squid:2.5.stable6:*:*:*:*:*:*:*
debian debian_linux 3.0 cpe:2.3:o:debian:debian_linux:3.0:*:*:*:*:*:*:*

References for CVE-2005-0211

URL Tags
http://fedoranews.org/updates/FEDORA--.shtml Broken Link
http://marc.info/?l=bugtraq&m=110780531820947&w=2 Third Party Advisory
http://secunia.com/advisories/14076 Permissions Required
http://securitytracker.com/id?1013045 Third Party Advisory VDB Entry
http://www.debian.org/security/2005/dsa-667 Patch Third Party Advisory
http://www.kb.cert.org/vuls/id/886006 Patch Third Party Advisory US Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2005:034 Broken Link
http://www.novell.com/linux/security/advisories/2005_06_squid.html Broken Link
http://www.osvdb.org/13319 Broken Link
http://www.redhat.com/support/errata/RHSA-2005-060.html Not Applicable Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2005-061.html Not Applicable Third Party Advisory
http://www.securityfocus.com/bid/12432 Third Party Advisory VDB Entry
http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-wccp_buffer_overflow Patch Vendor Advisory
http://www.squid-cache.org/Versions/v2/2.5/bugs/squid-2.5.STABLE7-wccp_buffer_overflow.patch Patch Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9573 Third Party Advisory
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