CVE-2011-2993

CriticalCVSS 9.3/10Last modified Jun 16, 2026

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.

Metrics

CVSS 2.0 9.3/10AV:N/AC:M/Au:N/C:C/I:C/A:C

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Aug 18, 2011
Last modified
Jun 16, 2026
NVD status
Modified

Related CVEs from 2011

CVE-2011-299510.0Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.6.23 and 4.x through 6, Thunderbird before 7.0, and SCVE-2011-299610.0Unspecified vulnerability in the plugin API in Mozilla Firefox 3.6.x before 3.6.23 allows remote attackers to cause a denial of service (memCVE-2011-299710.0Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox 6, Thunderbird before 7.0, and SeaMonkey before 2.4 allow remoCVE-2011-299810.0Integer underflow in Mozilla Firefox 3.6.x before 3.6.23 allows remote attackers to cause a denial of service (application crash) or possiblCVE-2011-29994.3Mozilla Firefox before 3.6.23 and 4.x through 5, Thunderbird before 6.0, and SeaMonkey before 2.3 do not properly handle "location" as the nCVE-2011-30004.3Mozilla 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 thatCVE-2011-30014.3Mozilla Firefox 4.x through 6, Thunderbird before 7.0, and SeaMonkey before 2.4 do not prevent manual add-on installation in response to theCVE-2011-30029.3Almost Native Graphics Layer Engine (ANGLE), as used in Mozilla Firefox before 7.0 and SeaMonkey before 2.4, does not validate the return vaCVE-2011-300310.0Mozilla Firefox before 7.0 and SeaMonkey before 2.4 allow remote attackers to cause a denial of service (application crash) or possibly execCVE-2011-30044.3The JSSubScriptLoader in Mozilla Firefox 4.x through 6 and SeaMonkey before 2.4 does not properly handle XPCNativeWrappers during calls to tCVE-2011-30059.3Use-after-free vulnerability in Mozilla Firefox 4.x through 6, Thunderbird before 7.0, and SeaMonkey before 2.4 allows remote attackers to cCVE-2011-30066.8The MyAsUtil ActiveX control in MyAsUtil5.2.0.603.dll in McAfee SaaS Endpoint Protection 5.2.1 and earlier allows remote attackers to bypass
CVE-2011-2993: Critical severity, CVSS 9.3 | Vulnix