HOMEVULNERABILITIESCVE-2009-3382
CRITICALPOC

CVE-2009-3382

NVD-CWE-OtherPublished: October 29, 2009· Updated: Jun 16, 2026

10.0
CVSS v3.1

Official Description

layout/base/nsCSSFrameConstructor.cpp in the browser engine in Mozilla Firefox 3.0.x before 3.0.15 does not properly handle first-letter frames, which allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unspecified vectors.

NVD Source

Technical Analysis

CVE-2009-3382 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2009-3382. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected Vendors & Products

Mozilla1 product(s)
firefox
Source: NVD CPE · 14 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://www.mozilla.org/security/announce/2009/mfsa2009-64.html
PATCHhttp://www.mozilla.org/security/announce/2009/mfsa2009-64.html

All References (12)

→
http://sunsolve.sun.com/search/document.do?assetkey=1-26-272909-1
→
http://www.mozilla.org/security/announce/2009/mfsa2009-64.htmlPatch · Vendor Advisory
→
http://www.vupen.com/english/advisories/2009/3334
→
https://bugzilla.mozilla.org/show_bug.cgi?id=514960
→
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11219
→
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5581
→
http://sunsolve.sun.com/search/document.do?assetkey=1-26-272909-1
→
http://www.mozilla.org/security/announce/2009/mfsa2009-64.htmlPatch · Vendor Advisory
→
http://www.vupen.com/english/advisories/2009/3334
→
https://bugzilla.mozilla.org/show_bug.cgi?id=514960
→
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11219
→
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5581

Quick Facts

CVE IDCVE-2009-3382
CVSS Score10.0 / 10
SeverityCRITICAL
WeaknessNVD-CWE-Other
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedOct 29, 2009

Related CVEs (NVD-CWE-Other)

CVE-2002-1468
10.0
CVE-1999-0745
10.0
CVE-2001-1080
10.0
CVE-1999-1405
10.0
CVE-2002-0747
10.0
CVE-2007-1015
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2009-3382 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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