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CVE-2009-3389

29
FAUCET Score

CVE-2009-3389 describes an integer overflow vulnerability in the libtheora library, affecting Mozilla Firefox versions prior to 3.5.6 and SeaMonkey prior to 2.0.1. This flaw allows remote attackers to trigger a denial of service through an application crash or potentially execute arbitrary code by providing a specially crafted video with large dimensions. With a CVSS score of 9.3, this vulnerability is considered critical due to its network-based attack vector, medium attack complexity, and high potential for confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.5.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.5.1:*:*:*:*:*:*:*
3.5.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.5.2:*:*:*:*:*:*:*
3.5.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.5.3:*:*:*:*:*:*:*
3.5.4CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.5.4:*:*:*:*:*:*:*
3.5.5CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.5.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.78%
Probability of exploitation in next 30 days
EPSS Percentile
91.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0478 is in the 57th percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 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 (1)

mozillapatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2009-3389Moderate

libtheora: DoS or arbitrary code execution via a video with large dimensions

Dec 15, 2009

References

lists.opensuse.org / opensuse-security-announce/2010-04/msg00001.html
lists.opensuse.org / opensuse-security-announce/2010-06/msg00001.html
bugzilla.mozilla.org / show_bug.cgi
bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/37699
Vendor Advisory
secunia.com / advisories/37785
Vendor Advisory
secunia.com / advisories/37856
secunia.com / advisories/37881
secunia.com / advisories/39317
exchange.xforce.ibmcloud.com / vulnerabilities/54805
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7967
redhat.com / archives/fedora-package-announce/2009-December/msg00995.html
redhat.com / archives/fedora-package-announce/2009-December/msg01034.html
redhat.com / archives/fedora-package-announce/2009-December/msg01041.html
mandriva.com / security/advisories
mozilla.org / security/announce/2009/mfsa2009-67.html
PatchVendor Advisory
novell.com / linux/security/advisories/2009_63_firefox.html
securityfocus.com / bid/37349
securityfocus.com / bid/37368
theora.org / news
ubuntu.com / usn/USN-874-1
vupen.com / english/advisories/2009/3547
PatchVendor Advisory