Is CVE-2014-1491 being actively exploited?

CVE-2014-1491 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2014-1491?

CVE-2014-1491 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2014-1491

MEDIUM · CVSS 4.3EPSS 4.6%EU EUVD

Mozilla Network Security Services (NSS) before 3.15.4, as used in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24.3, Thunderbird before 24.3, SeaMonkey before 2.24, and other products, does not properly restrict public values in Diffie-Hellman key exchanges, which makes it easier for remote attackers to bypass cryptographic protection mechanisms in ticket handling by leveraging use of a certain value.

Key facts

CVSS score: 4.3 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:P/I:N/A:N
Weakness (CWE): CWE-326
EPSS score: 4.6% (92th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2014-1567)
Published: February 6, 2014
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2014-1567 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
debian / debian linux
debian / debian linux
fedoraproject / fedora
fedoraproject / fedora
mozilla / firefox
mozilla / network security services
mozilla / seamonkey
mozilla / thunderbird
opensuse / opensuse
opensuse / opensuse
opensuse / opensuse
oracle / enterprise manager ops center
oracle / enterprise manager ops center
oracle / enterprise manager ops center
oracle / enterprise manager ops center
oracle / vm server
suse / linux enterprise desktop
suse / linux enterprise server
suse / linux enterprise server
suse / linux enterprise software development kit

Certified products that may be affected

2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

SUSE Linux Enterprise Server 11 Service Pack 2 on IBM System z - SUSE Linux Products Gmbh - Common Criteria BSI-DSZ-CC-0852-2013 - archived
SUSE Linux Enterprise Server 11 Service Pack 2 including KVM virtualization - SUSE Linux Products Gmbh - Common Criteria BSI-DSZ-CC-0787-2013 - archived

References

http://hg.mozilla.org/projects/nss/rev/12c42006aed8(Patch, Vendor Advisory)
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761(Third Party Advisory)
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127966.html(Third Party Advisory)
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/129218.html(Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00004.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00005.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00010.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00017.html(Mailing List, Third Party Advisory)
http://seclists.org/fulldisclosure/2014/Dec/23(Not Applicable)
http://secunia.com/advisories/56858(Third Party Advisory)
http://secunia.com/advisories/56888(Third Party Advisory)
http://secunia.com/advisories/56922(Third Party Advisory)
http://www.debian.org/security/2014/dsa-2858(Third Party Advisory)
http://www.debian.org/security/2014/dsa-2994(Third Party Advisory)
http://www.mozilla.org/security/announce/2014/mfsa2014-12.html(Third Party Advisory, Vendor Advisory)
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html(Third Party Advisory)
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html(Third Party Advisory)
http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html(Third Party Advisory)
http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html(Third Party Advisory)
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html(Third Party Advisory)
http://www.securityfocus.com/archive/1/534161/100/0/threaded(Not Applicable)
http://www.securityfocus.com/bid/65332(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1029717(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1029720(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1029721(Third Party Advisory, VDB Entry)
http://www.ubuntu.com/usn/USN-2102-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2102-2(Third Party Advisory)
http://www.ubuntu.com/usn/USN-2119-1(Third Party Advisory)
http://www.vmware.com/security/advisories/VMSA-2014-0012.html(Not Applicable)
https://bugzilla.mozilla.org/show_bug.cgi?id=934545(Exploit, Issue Tracking, Patch, Vendor Advisory)
https://exchange.xforce.ibmcloud.com/vulnerabilities/90886(Third Party Advisory, VDB Entry)
https://security.gentoo.org/glsa/201504-01(Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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