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CVE-2004-0700

26
FAUCET Score

CVE-2004-0700 describes a format string vulnerability in mod_ssl versions prior to 2.8.19 for Apache before 1.3.31, specifically within the ssl_engine_log.c file. This flaw allows remote attackers to execute arbitrary code or cause a denial of service by injecting format string specifiers into HTTPS log messages. With a CVSS score of 7.5, it is considered highly severe due to its network-based attack vector, low attack complexity, and potential for partial confidentiality, integrity, and availability impact. While no public exploit code (Metasploit, Nuclei, ExploitDB) is readily available, the vulnerability has garnered significant community discussion, suggesting awareness and potential for private exploitation, though it is not currently listed on the KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
2.3.11CPE matchmatch criteria
cpe:2.3:a:mod_ssl:mod_ssl:2.3.11:*:*:*:*:*:*:*
2.4.0CPE matchmatch criteria
cpe:2.3:a:mod_ssl:mod_ssl:2.4.0:*:*:*:*:*:*:*
2.4.1CPE matchmatch criteria
cpe:2.3:a:mod_ssl:mod_ssl:2.4.1:*:*:*:*:*:*:*
2.4.2CPE matchmatch criteria
cpe:2.3:a:mod_ssl:mod_ssl:2.4.2:*:*:*:*:*:*:*
2.4.3CPE matchmatch criteria
cpe:2.3:a:mod_ssl:mod_ssl:2.4.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.80%
Probability of exploitation in next 30 days
EPSS Percentile
92.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0580 is in the 87th percentile among its peer group of 51,455 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (11)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux ES version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux WS version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux Advanced Workstation 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Network Proxy v 4.2 (RHEL 3)Fixed in: jabberd-0:2.0s10-3.37.rhn
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Network Proxy v 4.2 (RHEL 3)Fixed in: rhn-apache-0:1.3.27-36.rhn.rhel3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Network Proxy v 4.2 (RHEL 3)Fixed in: rhn-modperl-0:1.29-16.rhel3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Network Proxy v 4.2 (RHEL 4)Fixed in: jabberd-0:2.0s10-3.38.rhn
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Network Proxy v 4.2 (RHEL 4)Fixed in: rhn-apache-0:1.3.27-36.rhn.rhel4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Network Proxy v 4.2 (RHEL 4)Fixed in: rhn-modperl-0:1.29-16.rhel4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Stronghold 4
View patch

Vendor Advisories (1)

redhatCVE-2004-0700Important

mod_proxy hook format string

Jul 16, 2004

References

distro.conectiva.com.br / atualizacoes
marc.info
marc.info
packetstormsecurity.org / 0407-advisories/modsslFormat.txt
bugzilla.fedora.us / show_bug.cgi
exchange.xforce.ibmcloud.com / vulnerabilities/16705
virulent.siyahsapka.org
debian.org / security/2004/dsa-532
kb.cert.org / vuls/id/303448
Third Party AdvisoryUS Government Resource
mandrakesecure.net / en/advisories/advisory.php
osvdb.org / 7929
redhat.com / support/errata/RHSA-2004-405.html
redhat.com / support/errata/RHSA-2004-408.html
securityfocus.com / bid/10736
ubuntu.com / usn/usn-177-1