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CVE-2014-1511

84
FAUCET Score

CVE-2014-1511 is a critical vulnerability affecting Mozilla Firefox (before 28.0), Firefox ESR (before 24.4), Thunderbird (before 24.4), and SeaMonkey (before 2.25) that allows remote attackers to bypass the popup blocker through unspecified vectors. This vulnerability carries a CVSS score of 9.8 (CRITICAL) due to its network-based attack vector, low attack complexity, and high potential impact on confidentiality, integrity, and availability. While not listed on the KEV catalog, exploit intelligence indicates the existence of Metasploit modules, specifically "Firefox WebIDL Privileged Javascript Injection," suggesting readily available exploit code. The vulnerability has garnered significant community discussion and media coverage, including articles linking it to exploit kits, highlighting its potential for real-world exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 28.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
>= 24.0, < 24.4CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 2.25CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
< 24.4CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
83.63%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: Firefox WebIDL Privileged Javascript Injection · Mar 17, 2014
ExploitDB: EDB-34448 · Aug 28, 2014
This CVE's current EPSS score of 0.8363 is in the 98th percentile among its peer group of 36,833 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:24.4.0-1.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:24.4.0-1.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:24.4.0-1.el6_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:24.4.0-1.el6_5
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2014-1511Critical

Mozilla: Privilege escalation using WebIDL-implemented APIs (MFSA 2014-29)

Mar 18, 2014

References

lists.opensuse.org / opensuse-security-announce/2014-03/msg00016.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2014-03/msg00017.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2014-03/msg00022.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2014-04/msg00016.html
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2014-0310.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2014-0316.html
Third Party Advisory
bugzilla.mozilla.org / show_bug.cgi
ExploitIssue TrackingVendor Advisory
security.gentoo.org / glsa/201504-01
Third Party Advisory
debian.org / security/2014/dsa-2881
Third Party Advisory
debian.org / security/2014/dsa-2911
Third Party Advisory
mozilla.org / security/announce/2014/mfsa2014-29.html
Vendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2016-2952098.html
Third Party Advisory
securityfocus.com / bid/66207
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2151-1
Third Party Advisory