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CVE-2014-1491

20
FAUCET Score

CVE-2014-1491 describes a vulnerability in Mozilla Network Security Services (NSS) versions prior to 3.15.4, affecting products like Firefox, Thunderbird, and SeaMonkey. This flaw allows remote attackers to bypass cryptographic protections in ticket handling due to improper restrictions on public values during Diffie-Hellman key exchanges. The vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and potential for partial confidentiality impact, but no integrity or availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 24.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 27.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 3.15.4CPE matchmatch criteria
cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:*
< 2.24CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
< 24.3.0CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.66%
Probability of exploitation in next 30 days
EPSS Percentile
90.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0466 is in the 88th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (6)

mozillapatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: nss-0:3.16.1-2.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: nspr-0:4.10.6-1.el6_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: nss-0:3.16.1-4.el6_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: nss-util-0:3.16.1-1.el6_5
View patch
redhatpatch availablevia redhat_api
Product: RHEV 3.X Hypervisor and Agents for RHEL-6Fixed in: rhev-hypervisor6-0:6.5-20140725.0.el6ev
View patch

Vendor Advisories (1)

redhatCVE-2014-1491Moderate

nss: Do not allow p-1 as a public DH value (MFSA 2014-12)

Feb 4, 2014

References

hg.mozilla.org / projects/nss/rev/12c42006aed8
PatchVendor Advisory
kb.juniper.net / InfoCenter/index
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2014-February/127966.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2014-February/129218.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2014-02/msg00004.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2014-02/msg00005.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2014-02/msg00010.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2014-03/msg00017.html
Mailing ListThird Party Advisory
bugzilla.mozilla.org / show_bug.cgi
ExploitIssue TrackingPatchVendor Advisory
seclists.org / fulldisclosure/2014/Dec/23
Not Applicable
secunia.com / advisories/56858
Third Party Advisory
secunia.com / advisories/56888
Third Party Advisory
secunia.com / advisories/56922
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/90886
Third Party AdvisoryVDB Entry
security.gentoo.org / glsa/201504-01
Third Party Advisory
debian.org / security/2014/dsa-2858
Third Party Advisory
debian.org / security/2014/dsa-2994
Third Party Advisory
mozilla.org / security/announce/2014/mfsa2014-12.html
Third Party AdvisoryVendor Advisory
oracle.com / technetwork/topics/security/cpujan2015-1972971.html
Third Party Advisory
oracle.com / technetwork/topics/security/cpujan2016-2367955.html
Third Party Advisory
oracle.com / technetwork/topics/security/cpujul2014-1972956.html
Third Party Advisory
oracle.com / technetwork/topics/security/cpuoct2014-1972960.html
Third Party Advisory
oracle.com / technetwork/topics/security/ovmbulletinjul2016-3090546.html
Third Party Advisory
securityfocus.com / archive/1/534161/100/0/threaded
Not Applicable
securityfocus.com / bid/65332
Third Party AdvisoryVDB Entry
securitytracker.com / id/1029717
Third Party AdvisoryVDB Entry
securitytracker.com / id/1029720
Third Party AdvisoryVDB Entry
securitytracker.com / id/1029721
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2102-1
Third Party Advisory
ubuntu.com / usn/USN-2102-2
Third Party Advisory
ubuntu.com / usn/USN-2119-1
Third Party Advisory
vmware.com / security/advisories/VMSA-2014-0012.html
Not Applicable