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CVE-2015-1804

23
FAUCET Score

CVE-2015-1804 describes an out-of-bounds memory access vulnerability in the bdfReadCharacters function of X.Org libXfont versions prior to 1.4.9 and 1.5.1. This flaw, affecting various Canonical and Debian Linux distributions, allows remote authenticated users to trigger a denial of service and potentially execute arbitrary code via a specially crafted BDF font file. With a CVSS score of 8.5, it is considered highly severe due to its network attack vector, medium complexity, and potential for complete confidentiality, integrity, and availability compromise. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.4.8CPE matchmatch criteria
cpe:2.3:a:x:libxfont:*:*:*:*:*:*:*:*
1.5.0CPE matchmatch criteria
cpe:2.3:a:x:libxfont:1.5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

8.5HIGH

AV:N/AC:M/Au:S/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
6.8
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.96%
Probability of exploitation in next 30 days
EPSS Percentile
91.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0496 is in the 91st percentile among its peer group of 1,160 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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 (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXfont-0:1.4.5-5.el6_7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libXfont-0:1.4.7-3.ael7b_1
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: libXfont

Vendor Advisories (1)

redhatCVE-2015-1804Important

libXfont: out-of-bounds memory access in bdfReadCharacters

Mar 17, 2015

References

advisories.mageia.org / MGASA-2015-0113.html
lists.fedoraproject.org / pipermail/package-announce/2015-March/152497.html
lists.fedoraproject.org / pipermail/package-announce/2015-March/152838.html
lists.opensuse.org / opensuse-security-announce/2015-03/msg00032.html
lists.opensuse.org / opensuse-security-announce/2015-04/msg00002.html
lists.opensuse.org / opensuse-security-announce/2015-04/msg00005.html
lists.opensuse.org / opensuse-updates/2015-12/msg00074.html
rhn.redhat.com / errata/RHSA-2015-1708.html
security.gentoo.org / glsa/201507-21
debian.org / security/2015/dsa-3194
mandriva.com / security/advisories
oracle.com / technetwork/topics/security/bulletinapr2015-2511959.html
oracle.com / technetwork/topics/security/cpujul2015-2367936.html
securityfocus.com / bid/73279
securitytracker.com / id/1031935
ubuntu.com / usn/USN-2536-1
x.org / wiki/Development/Security/Advisory-2015-03-17
Vendor Advisory