HOME VULNERABILITIESCVE-2009-2462

CRITICAL

CVE-2009-2462

CWE-399Published: July 22, 2009· Updated: Jun 16, 2026

10.0

CVSS v3.1

Official Description

The browser engine in Mozilla Firefox before 3.0.12 and Thunderbird allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to (1) the frame chain and synchronous events, (2) a SetMayHaveFrame assertion and nsCSSFrameConstructor::CreateFloatingLetterFrame, (3) nsCSSFrameConstructor::ConstructFrame, (4) the child list and initial reflow, (5) GetLastSpecialSibling, (6) nsFrameManager::GetPrimaryFrameFor and MathML, (7) nsFrame::GetBoxAscent, (8) nsCSSFrameConstructor::AdjustParentFrame, (9) nsDOMOfflineResourceList, and (10) nsContentUtils::ComparePosition.

Technical Analysis

CVE-2009-2462 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.

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

Mozilla2 product(s)

firefoxthunderbird

Source: NVD CPE · 112 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

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/mfsa2009-34.html

PATCHhttp://www.securityfocus.com/bid/35758

PATCHhttp://www.vupen.com/english/advisories/2009/1972

PATCHhttp://www.mozilla.org/security/announce/2009/mfsa2009-34.html

PATCHhttp://www.securityfocus.com/bid/35758

PATCHhttp://www.vupen.com/english/advisories/2009/1972

ADVISORYhttp://secunia.com/advisories/35914

ADVISORYhttp://secunia.com/advisories/35943

ADVISORYhttp://secunia.com/advisories/35944

ADVISORYhttp://secunia.com/advisories/35947

ADVISORYhttp://secunia.com/advisories/35914

ADVISORYhttp://secunia.com/advisories/35943

ADVISORYhttp://secunia.com/advisories/35944

ADVISORYhttp://secunia.com/advisories/35947

All References (62)

→

http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00005.html

→

http://lists.opensuse.org/opensuse-security-announce/2009-08/msg00002.html

→

http://rhn.redhat.com/errata/RHSA-2009-1162.html

→

http://rhn.redhat.com/errata/RHSA-2009-1163.html

→

http://secunia.com/advisories/35914Vendor Advisory

→

http://secunia.com/advisories/35943Vendor Advisory

→

http://secunia.com/advisories/35944Vendor Advisory

→

http://secunia.com/advisories/35947Vendor Advisory

→

http://secunia.com/advisories/36005

→

http://secunia.com/advisories/36145

→

http://sunsolve.sun.com/search/document.do?assetkey=1-26-265068-1

→

http://sunsolve.sun.com/search/document.do?assetkey=1-77-1020800.1-1

→

http://www.mozilla.org/security/announce/2009/mfsa2009-34.htmlPatch · Vendor Advisory

→

http://www.redhat.com/support/errata/RHSA-2010-0153.html

→

http://www.redhat.com/support/errata/RHSA-2010-0154.html

Quick Facts

CVE IDCVE-2009-2462

CVSS Score10.0 / 10

SeverityCRITICAL

WeaknessCWE-399

CISA KEVNo

Affected1 vendor(s)

PublishedJul 22, 2009

Related CVEs (CWE-399)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2009-2462 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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