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CVE-2012-0475

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…

Low2.6EPSS 1.9%
Published
Updated
Reserved
Assigned by
mitre

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.

Scores

CVSS scores of CVE-2012-0475, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified2.0Low2.6AV:N/AC:H/Au:N/C:N/I:P/A:N
EPSS (exploitation in 30 days)
1.9% · top 20% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.6.

Weakness

Affected products

  • n/a

    • affected n/a

References (8)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .