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CVE-2011-2993

The implementation of digital signatures for JAR files in Mozilla Firefox 4.x through 5, SeaMonkey 2.x before 2.3, and possibly other…

High9.3EPSS 1.3%
Published
Updated
Reserved
Assigned by
mitre

Description

The implementation of digital signatures for JAR files in Mozilla Firefox 4.x through 5, SeaMonkey 2.x before 2.3, and possibly other products does not prevent calls from unsigned JavaScript code to signed code, which allows remote attackers to bypass the Same Origin Policy and gain privileges via a crafted web site, a different vulnerability than CVE-2008-2801.

Timeline

  1. ID reserved

    By mitre

  2. · 17 days later

    Published

  3. · 13 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2011-2993, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified2.0High9.3AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS (exploitation in 30 days)
1.3% · top 30% of all CVEs (8 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.3.

Weakness

Affected products

  • n/a

    • affected n/a

References (5)

Sources

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

Badge for a README or a ticket

CVE-2011-2993 badge
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Record last updated .