Is CVE-2004-2154 in the CISA KEV catalog?

No. CVE-2004-2154 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2004-2154?

CVE-2004-2154 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2004-2154?

CVE-2004-2154 has an EPSS score of 2.07% (79th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2004-2154?

Upgrade cups on debian 11 to 1.1.20final+rc1-1 or later.

CVE & CISA-KEV Catalog

CVE-2004-2154

CRITICALEPSS 79th pctl

9.8

CVSS v3

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.

CWE-178

How to fix

Remediation Available

cupsDebian

Fixed in:1.1.20final+rc1-1CVE-2004-2154

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.07%probability of exploitation in 30 days

79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

Patch1

cups.org

Vendor Advisory1

bugzilla.redhat.com

Third-Party Advisory1

ubuntu.com

Issue Tracking1

bugzilla.redhat.com

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.