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Vulnerability details: VCID-9k2x-xwkt-c3cw
Vulnerability ID VCID-9k2x-xwkt-c3cw
Aliases CVE-2011-2999
Summary Multiple vulnerabilities have been found in Mozilla Firefox, Thunderbird, SeaMonkey, NSS, GNU IceCat, and XULRunner, some of which may allow execution of arbitrary code or local privilege escalation.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
System Score Found at
epss 0.00722 https://api.first.org/data/v1/epss?cve=CVE-2011-2999
epss 0.00722 https://api.first.org/data/v1/epss?cve=CVE-2011-2999
epss 0.00722 https://api.first.org/data/v1/epss?cve=CVE-2011-2999
epss 0.00722 https://api.first.org/data/v1/epss?cve=CVE-2011-2999
epss 0.00722 https://api.first.org/data/v1/epss?cve=CVE-2011-2999
epss 0.00722 https://api.first.org/data/v1/epss?cve=CVE-2011-2999
epss 0.00722 https://api.first.org/data/v1/epss?cve=CVE-2011-2999
epss 0.00722 https://api.first.org/data/v1/epss?cve=CVE-2011-2999
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2011-38
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2011-2999.json
https://api.first.org/data/v1/epss?cve=CVE-2011-2999
741904 https://bugzilla.redhat.com/show_bug.cgi?id=741904
CVE-2011-2999 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2999
GLSA-201301-01 https://security.gentoo.org/glsa/201301-01
mfsa2011-38 https://www.mozilla.org/en-US/security/advisories/mfsa2011-38
RHSA-2011:1341 https://access.redhat.com/errata/RHSA-2011:1341
RHSA-2011:1342 https://access.redhat.com/errata/RHSA-2011:1342
RHSA-2011:1343 https://access.redhat.com/errata/RHSA-2011:1343
RHSA-2011:1344 https://access.redhat.com/errata/RHSA-2011:1344
USN-1210-1 https://usn.ubuntu.com/1210-1/
USN-1213-1 https://usn.ubuntu.com/1213-1/
USN-1222-1 https://usn.ubuntu.com/1222-1/
No exploits are available.
Exploit Prediction Scoring System (EPSS)
Percentile 0.72465
EPSS Score 0.00722
Published At April 7, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:08:15.387082+00:00 Gentoo Importer Import https://security.gentoo.org/glsa/201301-01 38.0.0