CVE-2005-0211
CVE-2005-0211 is a high-severity vulnerability in Squid-cache Squid with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 22% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.
Key facts
- Severity: High (CVSS 2.0 base score 7.5)
- EPSS exploit prediction: 22% (97th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Squid-cache Squid
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2005-0211?
- CVE-2005-0211 has a CVSS 2.0 base score of 7.5, rated high severity.
- Is CVE-2005-0211 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2005-0211?
- CVE-2005-0211 primarily affects Squid-cache Squid. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2005-0211?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2005-0211 published?
- CVE-2005-0211 was published on 2005-05-02 and last updated on 2026-06-16.
References
- http://fedoranews.org/updates/FEDORA--.shtml
- http://marc.info/?l=bugtraq&m=110780531820947&w=2
- http://secunia.com/advisories/14076
- http://securitytracker.com/id?1013045
- http://www.debian.org/security/2005/dsa-667
- http://www.kb.cert.org/vuls/id/886006
- http://www.mandriva.com/security/advisories?name=MDKSA-2005:034
- http://www.novell.com/linux/security/advisories/2005_06_squid.html
- http://www.osvdb.org/13319
- http://www.redhat.com/support/errata/RHSA-2005-060.html
- http://www.redhat.com/support/errata/RHSA-2005-061.html
- http://www.securityfocus.com/bid/12432
- http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-wccp_buffer_overflow
- http://www.squid-cache.org/Versions/v2/2.5/bugs/squid-2.5.STABLE7-wccp_buffer_overflow.patch
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9573
Affected products (7)
- cpe:2.3:a:squid-cache:squid:2.5.stable1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:2.5.stable2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:2.5.stable3:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:2.5.stable4:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:2.5.stable5:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:2.5.stable6:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:3.0:*:*:*:*:*:*:*
More vulnerabilities in Squid-cache Squid
- CVE-2025-62168 — Critical (CVSS 10.0): Squid is a caching proxy for the Web. In Squid versions prior to 7.2, a failure to redact HTTP authentication…
- CVE-2020-15049 — Critical (CVSS 9.9): An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request…
- CVE-2020-11945 — Critical (CVSS 9.8): An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to…
- CVE-2019-12519 — Critical (CVSS 9.8): An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls…
- CVE-2019-12524 — Critical (CVSS 9.8): An issue was discovered in Squid through 4.7. When handling requests from users, Squid checks its rules to see if the…
- CVE-2019-12526 — Critical (CVSS 9.8): An issue was discovered in Squid before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow.…
All CVEs affecting Squid-cache Squid →
Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities
- CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
- CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
- CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
- CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
- CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
- CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.