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CVE-2009-3073

26
FAUCET Score

CVE-2009-3073 describes an unspecified vulnerability in the JavaScript engine of Mozilla Firefox 3.5.x versions prior to 3.5.3. This critical flaw, with a CVSS score of 10.0, allows remote attackers to cause a denial of service through memory corruption and application crashes, and potentially execute arbitrary code without authentication. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
3.5CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.5:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*

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
4.64%
Probability of exploitation in next 30 days
EPSS Percentile
90.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0464 is in the 84th percentile among its peer group of 51,553 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, 0.1 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-2009-3073Critical

Firefox 3.5 JavaScript engine crashes

Sep 9, 2009

References

bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/36671
secunia.com / advisories/37098
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6398
mozilla.org / security/announce/2009/mfsa2009-47.html
Vendor Advisory
novell.com / linux/security/advisories/2009_48_firefox.html
securityfocus.com / bid/36343