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Fencer Vulns
critical 10.0

CVE-2004-0492 in the critical feed json

Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31 allows remote attackers to cause a denial of service (p…

published 2004-06-23 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0491

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
33.6%
EPSS 33.6% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31 allows remote attackers to cause a denial of service (process crash) and possibly execute arbitrary code via a negative Content-Length HTTP header field, which causes a large amount of data to be copied.

Patch / fix

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2004-0492 updated

httpd mod_proxy buffer overflow

  • Red Hat Enterprise Linux ES version 2.1 Red Hat Enterprise Linux WS version 2.1 Red Hat Linux Advanced Workstation 2.1
    fixed: vendor fix RHSA-2004:245

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

33.64% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.