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CVE-2009-2043

22
FAUCET Score

CVE-2009-2043 describes a denial-of-service vulnerability in Mozilla Firefox versions 3.0.2 through 3.0.10, specifically within the nsViewManager.cpp component, triggered by interactions with TinyMCE. This vulnerability has a CVSS score of 4.3, indicating a medium severity, and can be exploited remotely with medium attack complexity to cause an application crash due to a NULL pointer dereference. While there is no evidence of active exploitation or Metasploit/Nuclei modules, a proof-of-concept exploit exists on ExploitDB, and the CVE has minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
3.0.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.0.2:*:*:*:*:*:*:*
3.0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.0.3:*:*:*:*:*:*:*
3.0.4CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.0.4:*:*:*:*:*:*:*
3.0.5CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.0.5:*:*:*:*:*:*:*
3.0.6CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.0.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.36%
Probability of exploitation in next 30 days
EPSS Percentile
90.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-33042 · May 11, 2009
This CVE's current EPSS score of 0.0436 is in the 87th percentile among its peer group of 19,958 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, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

Remediation records are not available for this CVE.

References

bugzilla.mozilla.org / show_bug.cgi
bugzilla.redhat.com / show_bug.cgi
exchange.xforce.ibmcloud.com / vulnerabilities/51197
rhn.redhat.com / errata/RHSA-2009-1095.html
securityfocus.com / bid/35413