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CVE-2014-1564

31
FAUCET Score

CVE-2014-1564 describes an information disclosure vulnerability in Mozilla Firefox, Firefox ESR, and Thunderbird versions prior to 32.0, 31.1, and 31.1 respectively. This flaw stems from improper memory initialization during GIF rendering, allowing remote attackers to extract sensitive process memory data. The vulnerability has a CVSS score of 4.3 (medium severity), indicating a network-based attack with medium complexity, requiring no authentication, and primarily impacting confidentiality. While not on the KEV catalog and with no Metasploit or Nuclei exploits, an ExploitDB entry exists, and it has garnered limited community discussion and media coverage, suggesting it is not actively exploited in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
11.4CPE matchmatch criteria
cpe:2.3:o:opensuse:evergreen:11.4:*:*:*:*:*:*:*
12.3CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:12.3:*:*:*:*:*:*:*
13.1CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
<= 31.1.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
30.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:30.0:*:*:*:*:*:*:*

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
5.46%
Probability of exploitation in next 30 days
EPSS Percentile
91.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-39295 · Sep 2, 2014
This CVE's current EPSS score of 0.0546 is in the 90th 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

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

Remediation

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2014-1564Moderate

Mozilla: Uninitialized memory use during GIF rendering (MFSA 2014-69)

Sep 3, 2014

References

lists.opensuse.org / opensuse-security-announce/2014-09/msg00003.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-01/msg00024.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-07/msg00031.html
lists.opensuse.org / opensuse-updates/2014-09/msg00011.html
Third Party Advisory
packetstormsecurity.com / files/128132/Mozilla-Firefox-Secret-Leak.html
bugzilla.mozilla.org / show_bug.cgi
Issue Tracking
seclists.org / fulldisclosure/2014/Sep/18
secunia.com / advisories/60148
secunia.com / advisories/61114
security.gentoo.org / glsa/201504-01
mozilla.org / security/announce/2014/mfsa2014-69.html
Vendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2016-2952098.html
securityfocus.com / archive/1/533357/100/0/threaded
securityfocus.com / bid/69525
securitytracker.com / id/1030793
securitytracker.com / id/1030794