CVE-2004-0757

CRITICAL

Heap-based buffer overflow in the SendUidl in the POP3 capability for Mozilla before 1.7, Firefox before 0.9, and Thunderbird before 0.7, may allow remote POP3 mail servers to execute arbitrary code.

Affects 3 products across 1 vendor.

CVSS 2.010.0
EPSS5.3%
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 2004. A critical vulnerability affects Mozilla systems (CVE-2004-0757). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2004-GLOBAL-343522-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2004-0757?
This vulnerability was disclosed in 2004. A critical vulnerability affects Mozilla systems (CVE-2004-0757). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2004-0757?
CVE-2004-0757 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 5.3%.
Is CVE-2004-0757 actively exploited?
No confirmed active exploitation of CVE-2004-0757 as of 2026-09-25.
How do I remediate CVE-2004-0757?
Priority: MEDIUM. Advisory: http://bugzilla.mozilla.org/show_bug.cgi?id=229374 PSIRT: [email protected]
What systems are affected by CVE-2004-0757?
CVE-2004-0757 affects Mozilla Mozilla, Firefox, Thunderbird.
Vulnerability Details
CVE IDCVE-2004-0757
BSIDBS-2004-GLOBAL-343522-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published2004-08-18
Last Modified2026-06-16
ICS Relevance0%
SourceNVD
Official Description

Heap-based buffer overflow in the SendUidl in the POP3 capability for Mozilla before 1.7, Firefox before 0.9, and Thunderbird before 0.7, may allow remote POP3 mail servers to execute arbitrary code.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: Heap-based buffer overflow in the SendUidl in the POP3 capability for Mozilla before 1.7, Firefox before 0.9, and Thunderbird before 0.7, may allow remote POP3 mail servers to execute arbitrary code. CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C.

Exploitation Likelihood: LOW

Affected Products
VendorProductAffected Versions
Mozilla Mozilla ≤ 1.7
Mozilla Firefox ≤ 0.9
Mozilla Thunderbird ≤ 0.7
Remediation
View Vendor Advisory →

Remediation Priority: MEDIUM

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 8094 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 Hash7be43af5cc68d4f72f99051b56eaf1d65f98cff47b66bfe2a8e573a7171894477169fb99565b801386c5a690fafde7d23dd13005c01cb97253988c543b3d6bd5
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