CVE-2014-1512

Exp

Use-after-free vulnerability in the TypeObject class in the JavaScript engine in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allows remote attackers to execute arbitrary code by triggering extensive memory consumption while garbage collection is occurring, as demonstrated by improper handling of BumpChunk objects.

Published: 2014-03-19 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-1512 is rated High Exploit Risk (82.9/100): CVSS Critical severity, with high exploitation likelihood (EPSS 12.93%, 94th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2014-1512

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2014-1512

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-17 17.91% 12.93% -4.98%
2 2025-03-30 27.28% 17.91% -9.37%
3 2025-03-29 — 27.28% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-1512

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2014-1512

OS Trackers for CVE-2014-1512

vendor priority summary link
gentoo normal CVE-2014-1512: 1 GLSA(s) (201504-01), 7 atom(s) (dev-libs/nspr, mail-client/thunderbird, …); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-1512
redhat critical — https://access.redhat.com/security/cve/CVE-2014-1512
suse critical CVE-2014-1512 severity critical: SUSE including 55 source package names (MozillaFirefox-140.2.0-160000.1.2, MozillaFirefox-24.4.0esr-0.5.5.1, …), 73 product×package rows across 14 product lines (SUSE Linux Enterprise Desktop 11 SP3, SUSE Linux Enterprise Module for Desktop Applications 15, … (14 product lines)): Fixed 73. https://www.suse.com/security/cve/CVE-2014-1512/
ubuntu medium CVE-2014-1512 medium priority: Ubuntu including 2 source packages (firefox, thunderbird), 10 status rows across 5 suites (lucid, precise, quantal, saucy, upstream): released 8, ignored 2. https://ubuntu.com/security/CVE-2014-1512

Affected software / configurations for CVE-2014-1512

Vendor Product Version Raw CPE
mozilla firefox < 28.0 cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
mozilla firefox >= 24.0, < 24.4 cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
mozilla seamonkey < 2.25 cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
mozilla thunderbird < 24.4 cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 12.10 cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*
canonical ubuntu_linux 13.10 cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 5.0 cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 6.0 cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_eus 6.5 cpe:2.3:o:redhat:enterprise_linux_eus:6.5:*:*:*:*:*:*:*
redhat enterprise_linux_server 5.0 cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 6.0 cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 6.5 cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 6.5 cpe:2.3:o:redhat:enterprise_linux_server_eus:6.5:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 6.5 cpe:2.3:o:redhat:enterprise_linux_server_tus:6.5:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 5.0 cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 6.0 cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
suse suse_linux_enterprise_software_development_kit 11.0 cpe:2.3:a:suse:suse_linux_enterprise_software_development_kit:11.0:sp3:*:*:*:*:*:*
opensuse opensuse 11.4 cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:*
opensuse opensuse 12.3 cpe:2.3:o:opensuse:opensuse:12.3:*:*:*:*:*:*:*
opensuse opensuse 13.1 cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
suse suse_linux_enterprise_desktop 11 cpe:2.3:o:suse:suse_linux_enterprise_desktop:11:sp3:*:*:*:*:*:*
suse suse_linux_enterprise_server 11 cpe:2.3:o:suse:suse_linux_enterprise_server:11:sp3:*:*:*:-:*:*
suse suse_linux_enterprise_server 11 cpe:2.3:o:suse:suse_linux_enterprise_server:11:sp3:*:*:*:vmware:*:*

References for CVE-2014-1512

URL Tags
http://archives.neohapsis.com/archives/bugtraq/2014-03/0145.html Broken Link
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00016.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00017.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00022.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00016.html Mailing List Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-0310.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-0316.html Third Party Advisory
http://www.debian.org/security/2014/dsa-2881 Third Party Advisory
http://www.debian.org/security/2014/dsa-2911 Third Party Advisory
http://www.mozilla.org/security/announce/2014/mfsa2014-30.html Vendor Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory
http://www.securityfocus.com/bid/66209 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2151-1 Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=982957 Exploit Issue Tracking Vendor Advisory
https://security.gentoo.org/glsa/201504-01 Third Party Advisory
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