CVE-2023-2663: xpdf Uncontrolled Recursion
CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2023-2663
Published 11-05-2023Last modified 24-01-2025
Vulnerability summary
CVE-2023-2663 is a medium (CVSS 5.5) Uncontrolled Recursion vulnerability in xpdf. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 40.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
0.48%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 1 · Duplicates 1Timeline
- 11-05-2023PublishedVulnerability first disclosed.
- 24-01-2025Last modifiedVulnerability information updated.
Description
In Xpdf 4.04 (and earlier), a PDF object loop in the page label tree leads to infinite recursion and a stack overflow.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 5.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSources3 sources · 2.9–5.5
- CVE.orgCNA2.9LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.48%
Chance of exploitation in the next 30 days
Percentile
40%
Versus all other CVEs
30-day change
0.00 pp
From 0.48% on 20-09-2026
20-09-202620-10-2026
EPSS score0.48%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (forum.xpdfreader.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Ubuntu2 products
- ipeAll versions (No fix recorded)
- xpdfAll versions (No fix recorded)
Xpdf1 product
- xpdf4.04
Xpdfreader1 product
- xpdf≤ 4.04
3 vendors · 4 products