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Vulnerability record · CVE-2004-2154 · published 31 December 2004

CVE-2004-2154: Apple cups vulnerability

Apple · Cups

CUPS before 1.1.21rc1 treats a Location directive in cupsd.conf as case sensitive, which allows attackers to bypass intended ACLs via a printer name containing uppercase or lowercase letters that are different from what is specified in the directive.

9.8 CVSS 3.1 Critical EPSS 2.1% · top 19.3% CWE-178 · CWE-178
9.8CVSS 3.1 base score, v2 7.5
2.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
14References
16 Jun 2026Last modified by NVD

Description

CUPS before 1.1.21rc1 treats a Location directive in cupsd.conf as case sensitive, which allows attackers to bypass intended ACLs via a printer name containing uppercase or lowercase letters that are different from what is specified in the directive.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.cups.org/str.php?L700 Broken LinkPatch
http://www.novell.com/linux/security/advisories/2005_18_sr.html Broken Link
http://www.redhat.com/support/errata/RHSA-2005-571.html Broken Link
http://www.ubuntu.com/usn/usn-185-1 Third Party Advisory
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=162405 Issue TrackingVendor Advisory
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=163274 Issue Tracking
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9940 Broken Link
http://www.cups.org/str.php?L700 Broken LinkPatch
http://www.novell.com/linux/security/advisories/2005_18_sr.html Broken Link
http://www.redhat.com/support/errata/RHSA-2005-571.html Broken Link
http://www.ubuntu.com/usn/usn-185-1 Third Party Advisory
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=162405 Issue TrackingVendor Advisory
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=163274 Issue Tracking
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9940 Broken Link

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Source: NIST National Vulnerability Database (record CVE-2004-2154), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.