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CVE-2014-1550

31
FAUCET Score

CVE-2014-1550 is a critical use-after-free vulnerability in the MediaInputPort class affecting Mozilla Firefox and Thunderbird before version 31.0. This flaw allows remote attackers to execute arbitrary code or cause a denial of service due to heap memory corruption from incorrect Web Audio control-message ordering. With a CVSS score of 10.0, it presents a severe risk with low attack complexity and complete impact on confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 30.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
<= 24.7CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
24.0CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:24.0:*:*:*:*:*:*:*
24.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:24.0.1:*:*:*:*:*:*:*
24.1CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:24.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
4.90%
Probability of exploitation in next 30 days
EPSS Percentile
91.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0490 is in the 85th percentile among its peer group of 51,553 CVEs.

Social Chatter

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

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2014-1550Moderate

Mozilla: Use-after-free in Web Audio due to incorrect control message ordering (MFSA 2014-58)

Jul 22, 2014

References

bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/59760
secunia.com / advisories/60628
security.gentoo.org / glsa/201504-01
mozilla.org / security/announce/2014/mfsa2014-58.html
Vendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2016-2952098.html
securitytracker.com / id/1030619
securitytracker.com / id/1030620