CVE-2009-3071

CRITICAL

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.0.14, and 3.5.x before 3.5.2, allow remote attackers to cause a denial of service (memory corruption and appli...

Affects 1 product across 1 vendor.

CVSS 2.010.0
EPSS5.5%
Percentile93th
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-2009-3071). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2009-GLOBAL-083679-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2009-3071?
This vulnerability was disclosed in 2009. A critical vulnerability affects Mozilla systems (CVE-2009-3071). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2009-3071?
CVE-2009-3071 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 5.5%.
Is CVE-2009-3071 actively exploited?
No confirmed active exploitation of CVE-2009-3071 as of 2026-09-25.
How do I remediate CVE-2009-3071?
Priority: MEDIUM. Advisory: http://www.mozilla.org/security/announce/2009/mfsa2009-47.html PSIRT: [email protected]
What systems are affected by CVE-2009-3071?
CVE-2009-3071 affects Mozilla Firefox.
Vulnerability Details
CVE IDCVE-2009-3071
BSIDBS-2009-GLOBAL-083679-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published2009-09-10
Last Modified2026-06-16
ICS Relevance0%
SourceNVD
Official Description

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.0.14, and 3.5.x before 3.5.2, 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 before 3.0.14, and 3.5.x before 3.5.2, 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 3.5.1 ≤ 3.0.13
Remediation
View Vendor Advisory →

Remediation Priority: MEDIUM

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 6244 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 Hash76e8b9b4d6b7ac401a4004ff611d67cf7c2b3cb29c473f5de3b3acdf6d29923883eb20f3083efde0a4efc23277c096c2f10b59b360ae58b1a1ee7552fafbb3f7
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