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CVE-2004-0594

51
FAUCET Score

CVE-2004-0594 describes a remote code execution vulnerability in PHP versions 4.x up to 4.3.7 and 5.x up to 5.0.0RC3, affecting products like Avaya, Debian, and HP. This flaw allows attackers to execute arbitrary code by triggering a memory_limit abort during zend_hash_init, overwriting a HashTable destructor pointer. The vulnerability has a CVSS score of 5.1, indicating a network-based attack with high attack complexity, leading to partial confidentiality, integrity, and availability impacts. While not listed in CISA's KEV catalog, exploit code is publicly available on ExploitDB, though there is no evidence of active exploitation, Metasploit modules, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.0CPE matchmatch criteria
cpe:2.3:a:openpkg:openpkg:2.0:*:*:*:*:*:*:*
2.1CPE matchmatch criteria
cpe:2.3:a:openpkg:openpkg:2.1:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:h:avaya:converged_communications_server:2.0:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:3.0:*:*:*:*:*:*:*
b.11.00CPE matchmatch criteria
cpe:2.3:o:hp:hp-ux:b.11.00:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.1MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
54.86%
Probability of exploitation in next 30 days
EPSS Percentile
98.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-660 · Nov 27, 2004
This CVE's current EPSS score of 0.5486 is in the 99th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: php-0:4.3.2-11.1.ent
View patch
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 Stronghold 4
View patch
redhatpatch availablevia redhat_api
Product: Stronghold 4.0 for Red Hat Enterprise Linux AS (version 2.1)
View patch

Vendor Advisories (1)

redhatCVE-2004-0594Important

security flaw

Jul 13, 2004

References

distro.conectiva.com.br / atualizacoes
Broken Link
lists.grok.org.uk / pipermail/full-disclosure/2004-July/023908.html
Broken LinkURL Repurposed
marc.info
Third Party Advisory
marc.info
Third Party Advisory
marc.info
Third Party Advisory
marc.info
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/16693
Third Party AdvisoryVDB Entry
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10896
Broken Link
debian.org / security/2004/dsa-531
Broken Link
debian.org / security/2005/dsa-669
Mailing List
gentoo.org / security/en/glsa/glsa-200407-13.xml
Third Party Advisory
mandrakesecure.net / en/advisories/advisory.php
Broken Link
novell.com / linux/security/advisories/2004_21_php4.html
Broken Link
redhat.com / support/errata/RHSA-2004-392.html
Broken Link
redhat.com / support/errata/RHSA-2004-395.html
Broken Link
redhat.com / support/errata/RHSA-2004-405.html
Broken Link
redhat.com / support/errata/RHSA-2005-816.html
Broken Link
securityfocus.com / bid/10725
Broken LinkThird Party AdvisoryVDB Entry
trustix.org / errata/2004/0039
Broken Link