Mozilla Firefox before 3.6.18, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14 do not distinguish between cookies for two domain names that differ only in a trailing dot, which allows remote web servers to bypass the Same Origin Policy via Set-Cookie headers.
CVE-2011-2362
- No confirmed exploitation signals yet
A fix is available — apply it.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 75.6%
- KEV
- Not listed
Published
June 30, 2011
Last Modified
April 29, 2026
References (32)
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2011-07/msg00001.html
- cve@mitrehttp://secunia.com/advisories/45002
- cve@mitrehttp://support.avaya.com/css/P8/documents/100144854
- cve@mitrehttp://support.avaya.com/css/P8/documents/100145333
- cve@mitrehttp://www.debian.org/security/2011/dsa-2268
- cve@mitrehttp://www.debian.org/security/2011/dsa-2269
- cve@mitrehttp://www.debian.org/security/2011/dsa-2273
- cve@mitrehttp://www.mandriva.com/security/advisories?name=MDVSA-2011:111
- cve@mitrehttp://www.mozilla.org/security/announce/2011/mfsa2011-24.html
- cve@mitrehttp://www.redhat.com/support/errata/RHSA-2011-0885.html
- cve@mitrehttp://www.redhat.com/support/errata/RHSA-2011-0886.html
- cve@mitrehttp://www.redhat.com/support/errata/RHSA-2011-0887.html
- cve@mitrehttp://www.redhat.com/support/errata/RHSA-2011-0888.html
- cve@mitrehttp://www.ubuntu.com/usn/USN-1149-1
- cve@mitrehttps://bugzilla.mozilla.org/show_bug.cgi?id=616264
Vendor Advisories for CVE-2011-2362(4)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2011:0888Red Hat Product SecurityCritical
Red Hat Security Advisory: seamonkey security update
- RHSA-2011:0885Red Hat Product SecurityCritical
Red Hat Security Advisory: firefox security and bug fix update
- RHSA-2011:0886Red Hat Product SecurityCritical
Red Hat Security Advisory: thunderbird security update
- RHSA-2011:0887Red Hat Product SecurityCritical
Red Hat Security Advisory: thunderbird security update
Patch Availability(6)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | xulrunner-1.9.2 (1.9.2.18+build2+nobinonly-0ubuntu0.10.10.1) @ maverick | 2026-05-29 | ubuntu |
| ubuntu | thunderbird (3.1.11+build2+nobinonly-0ubuntu0.11.04.1) @ natty | 2026-05-29 | ubuntu |
| redhat | seamonkey-0:1.0.9-71.el4 | 2011-06-21 | redhat |
| redhat | thunderbird-0:3.1.11-2.el6_1 | 2011-06-21 | redhat |
| redhat | xulrunner-0:1.9.2.18-2.el6_1 | 2011-06-21 | redhat |
| redhat | thunderbird-0:2.0.0.24-18.el5_6 | 2011-06-21 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Additional Vendor Advisories
(2)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 10× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 16:23 UTCEPSS rescore
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-05 02:26 UTCEPSS rescore
- 2026-07-04 06:27 UTCEPSS rescore
- 2026-07-02 14:01 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-28 14:03 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-28 04:52 UTCEPSS rescore
- 2026-06-27 03:05 UTCEPSS rescore
- 2026-06-27 03:05 UTCEPSS rescore
- 2026-06-25 13:46 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
Show 62 moreShow fewer
- 2026-06-19 19:22 UTCEPSS rescore
- 2026-06-19 19:22 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-11 13:56 UTCEPSS rescore
- 2026-06-10 22:14 UTCEPSS rescore
- 2026-06-10 13:17 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-05 06:07 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-29 07:38 UTCEG score recompute
- 2026-05-29 07:38 UTCVendor advisory
- 2026-05-29 07:38 UTCGHSA enrichment
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-24 16:43 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Frequently asked(4)
What is CVE-2011-2362?
When was CVE-2011-2362 disclosed?
Is CVE-2011-2362 actively exploited?
How do I remediate CVE-2011-2362?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2011-2362
Is Your Infrastructure Affected by CVE-2011-2362?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.