Description
Mozilla Firefox 4.x through 11.0, Thunderbird 5.0 through 11.0, and SeaMonkey before 2.9 do not properly construct the Origin and Sec-WebSocket-Origin HTTP headers, which might allow remote attackers to bypass an IPv6 literal ACL via a cross-site (1) XMLHttpRequest or (2) WebSocket operation involving a nonstandard port number and an IPv6 address that contains certain zero fields.
Published: 2012-04-25
Score: 2.6 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2012-0507 Mozilla Firefox 4.x through 11.0, Thunderbird 5.0 through 11.0, and SeaMonkey before 2.9 do not properly construct the Origin and Sec-WebSocket-Origin HTTP headers, which might allow remote attackers to bypass an IPv6 literal ACL via a cross-site (1) XMLHttpRequest or (2) WebSocket operation involving a nonstandard port number and an IPv6 address that contains certain zero fields.
Ubuntu USN Ubuntu USN USN-1430-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-1430-3 Thunderbird vulnerabilities
History

Wed, 28 May 2025 15:00:00 +0000

Type Values Removed Values Added
References

Thu, 22 May 2025 04:45:00 +0000


Subscriptions

Mozilla Firefox Seamonkey Thunderbird
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-06T18:23:31.021Z

Reserved: 2012-01-09T00:00:00.000Z

Link: CVE-2012-0475

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2012-04-25T10:10:17.683

Modified: 2026-04-29T01:13:23.040

Link: CVE-2012-0475

cve-icon Redhat

Severity :

Publid Date: 2012-04-24T00:00:00Z

Links: CVE-2012-0475 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses