Is CVE-2015-1804 in the CISA KEV catalog?

No. CVE-2015-1804 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-1804?

CVE-2015-1804 has a CVSS v2 base score of 8.5 (HIGH).

What is the EPSS score for CVE-2015-1804?

CVE-2015-1804 has an EPSS score of 4.92% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-1804?

Upgrade libxfont on debian 11 to 1:1.5.1-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2015-1804

HIGHEPSS 91th pctl

8.5

CVSS v2

NVD

Description

The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly perform type conversion for metrics values, which allows remote authenticated users to cause a denial of service (out-of-bounds memory access) and possibly execute arbitrary code via a crafted BDF font file.

CWE-189

How to fix

Remediation Available

libxfontDebian

Fixed in:1:1.5.1-1CVE-2015-1804

libxfontUbuntu

Fixed in:1:1.4.7-1ubuntu0.2USN-2536-1

libxfont1Ubuntu

Fixed in:1:1.4.7-1ubuntu0.2USN-2536-1

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

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

4.92%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Vendor Advisory1

x.org

Other references16

Related Vulnerabilities

Other CWE-189 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-1538	High	10.0	99%	-	-
CVE-2006-3747	High	7.6	96%	-	Fix
CVE-2007-0071	High	9.3	93%	-	-
CVE-2015-3829	High	10.0	90%	-	-
CVE-2015-3864	High	10.0	87%	-	-
CVE-2015-1539	High	10.0	86%	-	-

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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 2026-05-06.