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CVE-2014-1523

18
FAUCET Score

CVE-2014-1523 describes a heap-based buffer overflow in the read_u32 function within Mozilla Firefox, Thunderbird, and SeaMonkey, affecting versions prior to Firefox 29.0, Firefox ESR 24.5, Thunderbird 24.5, and SeaMonkey 2.26. This vulnerability, triggered by a crafted JPEG image, can lead to a denial of service through an out-of-bounds read and application crash. With a CVSS score of 6.5 (Medium), it requires user interaction (UI:R) but has low attack complexity (AC:L) and no authentication (PR:N), primarily impacting availability (A:H). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting a low current threat profile.

Impacted Technologies

VendorProductVersion(s)CPE
< 29.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
>= 24.0, < 24.5CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 2.26CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
< 24.5CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
19CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.16%
Probability of exploitation in next 30 days
EPSS Percentile
86.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0316 is in the 94th percentile among its peer group of 26,234 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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-0:24.5.0-1.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:24.5.0-1.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:24.5.0-1.el6_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:24.5.0-1.el6_5
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2014-1523Moderate

Mozilla: Out of bounds read while decoding JPG images (MFSA-2014-37)

Apr 29, 2014

References

lists.fedoraproject.org / pipermail/package-announce/2014-May/132332.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2014-May/132437.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2014-05/msg00006.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2014-05/msg00015.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2014-05/msg00010.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2014-05/msg00013.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2014-05/msg00033.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2014-05/msg00040.html
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2014-0448.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2014-0449.html
Third Party Advisory
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingVendor Advisory
security.gentoo.org / glsa/201504-01
Third Party Advisory
debian.org / security/2014/dsa-2918
Third Party Advisory
debian.org / security/2014/dsa-2924
Third Party Advisory
mozilla.org / security/announce/2014/mfsa2014-37.html
Vendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2016-2952098.html
Third Party Advisory
securityfocus.com / bid/67129
Third Party AdvisoryVDB Entry
securitytracker.com / id/1030163
Third Party AdvisoryVDB Entry
securitytracker.com / id/1030164
Third Party AdvisoryVDB Entry
securitytracker.com / id/1030165
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2185-1
Third Party Advisory
ubuntu.com / usn/USN-2189-1
Third Party Advisory