CVE-2011-3000
MEDIUM · CVSS 4.3EPSS 2.0%EU EUVD
Mozilla Firefox before 3.6.23 and 4.x through 6, Thunderbird before 7.0, and SeaMonkey before 2.4 do not properly handle HTTP responses that contain multiple Location, Content-Length, or Content-Disposition headers, which makes it easier for remote attackers to conduct HTTP response splitting attacks via crafted header values.
Key facts
- CVSS score
- 4.3 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N- Weakness (CWE)
- CWE-94
- EPSS score
- 2.0% (81th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-2968)
- Published
- September 29, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-2968 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / seamonkey
- mozilla / seamonkey
- mozilla / seamonkey
- mozilla / seamonkey
- mozilla / seamonkey
- mozilla / seamonkey
- mozilla / seamonkey
- mozilla / seamonkey
- mozilla / seamonkey
- mozilla / seamonkey
- mozilla / seamonkey
- mozilla / seamonkey
- mozilla / seamonkey
and 157 more…
References
- http://lists.opensuse.org/opensuse-security-announce/2011-11/msg00020.html
- http://lists.opensuse.org/opensuse-updates/2011-10/msg00002.html
- http://secunia.com/advisories/46315
- http://www.debian.org/security/2011/dsa-2312
- http://www.debian.org/security/2011/dsa-2313
- http://www.debian.org/security/2011/dsa-2317
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:139
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:140
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:141
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:142
- http://www.mozilla.org/security/announce/2011/mfsa2011-39.html(Vendor Advisory)
- http://www.redhat.com/support/errata/RHSA-2011-1341.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=655389
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14361
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain