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CVE-2003-0581

25
FAUCET Score

CVE-2003-0581 describes a denial-of-service vulnerability, and potential arbitrary code execution, in the X Fontserver for Truetype fonts (xfstt) version 1.4. Remote attackers can trigger an out-of-bounds array access by sending crafted FS_QueryXExtents8 or FS_QueryXBitmaps8 packets with a large num_ranges value. This vulnerability has a CVSS score of 7.5, indicating high severity with a network attack vector, low attack complexity, and potential for partial impact to confidentiality, integrity, and availability. While there is no known active exploitation, public exploit code, or KEV listing, the vulnerability has garnered significant community discussion, with 10 mentions, suggesting awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
1.2.1CPE matchmatch criteria
cpe:2.3:a:xfstt:xfstt:1.2.1:*:*:*:*:*:*:*
1.4CPE matchmatch criteria
cpe:2.3:a:xfstt:xfstt:1.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.50%
Probability of exploitation in next 30 days
EPSS Percentile
83.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0250 is in the 70th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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 (1)

debianpatch availablevia nvd_reference
View patch

References

marc.info
debian.org / security/2003/dsa-360
PatchVendor Advisory