CVE-2009-3381

CRITICAL

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox 3.5.x before 3.5.4 allow remote attackers to cause a denial of service (memory corruption and application crash) or pos...

Affects 1 product across 1 vendor.

CVSS 2.010.0
EPSS4.9%
Percentile92th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
◆ AI Analysis — automated analysis, not human-reviewed

This vulnerability was disclosed in 2009. A critical vulnerability affects Mozilla systems (CVE-2009-3381). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2009-GLOBAL-083787-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2009-3381?
This vulnerability was disclosed in 2009. A critical vulnerability affects Mozilla systems (CVE-2009-3381). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2009-3381?
CVE-2009-3381 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 4.9%.
Is CVE-2009-3381 actively exploited?
No confirmed active exploitation of CVE-2009-3381 as of 2026-09-25.
How do I remediate CVE-2009-3381?
Priority: MEDIUM. Advisory: http://www.mozilla.org/security/announce/2009/mfsa2009-64.html PSIRT: [email protected]
What systems are affected by CVE-2009-3381?
CVE-2009-3381 affects Mozilla Firefox.
Vulnerability Details
CVE IDCVE-2009-3381
BSIDBS-2009-GLOBAL-083787-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published2009-10-29
Last Modified2026-06-16
ICS Relevance0%
SourceNVD
Official Description

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox 3.5.x before 3.5.4 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox 3.5.x before 3.5.4 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors. CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C.

Exploitation Likelihood: LOW

Affected Products
VendorProductAffected Versions
Mozilla Firefox 3.5.1 3.5.2 3.5.3
Remediation
View Vendor Advisory →

Remediation Priority: MEDIUM

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 6195 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hash99dd8c88eb05a77825ded7d5b1499232f244413ee1ba489b540b5ad6db8a3845846be60355d4650d151e82a4d0b0f7ac8a01ccd3b689a8faade19e6afc2bbb07
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