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CVE-2014-1577

24
FAUCET Score

CVE-2014-1577 describes an out-of-bounds read vulnerability within the Web Audio subsystem of Mozilla Firefox and Thunderbird. Specifically, an invalid custom waveform can lead to a negative frequency calculation, allowing remote attackers to potentially extract sensitive information from process memory or cause a denial of service through memory corruption and application crashes. With a CVSS score of 6.4, this vulnerability is of medium severity, requiring no authentication and having low attack complexity, but it has a low EPSS score and FAUCET Risk Score. There is no known public exploit code (Metasploit, Nuclei, ExploitDB), and it has received minimal community discussion or media coverage, indicating it is not actively exploited or widely discussed.

Impacted Technologies

VendorProductVersion(s)CPE
31.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:31.0:*:*:*:*:*:*:*
31.1.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:31.1.0:*:*:*:*:*:*:*
31.0CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:31.0:*:*:*:*:*:*:*
31.1.0CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:31.1.0:*:*:*:*:*:*:*
<= 32.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.4MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.84%
Probability of exploitation in next 30 days
EPSS Percentile
85.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0284 is in the 79th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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 (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:31.2.0-3.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:31.2.0-2.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:31.2.0-3.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:31.2.0-3.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:31.2.0-3.el7_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: xulrunner-0:31.2.0-1.el7_0
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2014-1577Moderate

Mozilla: Web Audio memory corruption issues with custom waveforms (MFSA 2014-76)

Oct 14, 2014

References

lists.fedoraproject.org / pipermail/package-announce/2014-November/141796.html
lists.fedoraproject.org / pipermail/package-announce/2014-October/141085.html
lists.opensuse.org / opensuse-security-announce/2015-01/msg00024.html
lists.opensuse.org / opensuse-security-announce/2015-07/msg00031.html
lists.opensuse.org / opensuse-updates/2014-11/msg00000.html
lists.opensuse.org / opensuse-updates/2014-11/msg00001.html
lists.opensuse.org / opensuse-updates/2014-11/msg00002.html
lists.opensuse.org / opensuse-updates/2014-11/msg00003.html
rhn.redhat.com / errata/RHSA-2014-1635.html
rhn.redhat.com / errata/RHSA-2014-1647.html
advisories.mageia.org / MGASA-2014-0421.html
bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/61387
secunia.com / advisories/61854
secunia.com / advisories/62021
secunia.com / advisories/62022
secunia.com / advisories/62023
security.gentoo.org / glsa/201504-01
debian.org / security/2014/dsa-3050
debian.org / security/2014/dsa-3061
mozilla.org / security/announce/2014/mfsa2014-76.html
Vendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2015-2511959.html
securityfocus.com / bid/70440
securitytracker.com / id/1031028
securitytracker.com / id/1031030
ubuntu.com / usn/USN-2372-1
ubuntu.com / usn/USN-2373-1