LiveActive security incident?Get immediate response
CVE Record

CVE-2004-0646: Buffer overflow in the WriteToLog function for JRun 3.0 through 4.0 web server connectors, such as (1) mod_...

Buffer overflow in the WriteToLog function for JRun 3.0 through 4.0 web server connectors, such as (1) mod_jrun and (2) mod_jrun20 for Apache, with verbose logging enabled, allows remote attackers to execute arbitrary code via a long HTTP header Content-Type field or other fields.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This is an old but serious issue in JRun web server connector logging. If a vulnerable Apache connector has verbose logging enabled, a remote request with an oversized header field could trigger memory corruption and potentially run code on the server. Exposure is most likely in legacy environments still running JRun 3.0 through 4.0 Apache connector modules with verbose connector logging enabled. The provided data does not identify current CPEs or a complete affected-product matrix. Treat this as a high-priority legacy exposure check, especially for internet-facing Apache systems. The business risk is server compromise if vulnerable JRun connectors remain deployed with verbose logging enabled. Mitigation focus: Inventory Apache servers for mod_jrun or mod_jrun20 connectors.; Check whether verbose connector logging is enabled.; Review Macromedia advisory MPSB04-08 and MPSB04-09 for vendor guidance..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2004-0646 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.