Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2007-5199

31
FAUCET Score

CVE-2007-5199 describes a critical single-byte overflow vulnerability in X.Org libXfont 1.3.1, specifically within the catalogue.c file. This flaw allows remote attackers to achieve unspecified but potentially severe impact, as indicated by its CVSS score of 9.8 (CRITICAL), signifying high confidentiality, integrity, and availability impacts with no user interaction required. Despite its age and high severity, there is no known active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB. However, the vulnerability has garnered significant community discussion, with 10 mentions, suggesting ongoing awareness or analysis.

Impacted Technologies

VendorProductVersion(s)CPE
1.3.1CPE matchmatch criteria
cpe:2.3:a:x:libxfont:1.3.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.21%
Probability of exploitation in next 30 days
EPSS Percentile
80.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0221 is in the 70th percentile among its peer group of 36,821 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2007-5199Low

libxfont: single byte overflow in catalogue.c

Sep 28, 2007

References

bugzilla.suse.com / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
cgit.freedesktop.org / xorg/lib/libXfont/commit
Third Party Advisory