5.5

CVE-2018-18651: xpdfreader xpdf Excessive Iteration

CVSS: 5.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-18651
Published 25-10-2018Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2018-18651 is a medium (CVSS 5.5) Excessive Iteration vulnerability in xpdfreader xpdf. EPSS estimates a 0.93% chance of exploitation in the next 30 days, higher than 60% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.0 (NVD)
EPSS score
0.93%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 25-10-2018
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in Xpdf 4.00. catalog->getNumPages() in AcroForm.cc allows attackers to launch a denial of service (hang caused by large loop) via a specific pdf file, as demonstrated by pdftohtml. This is mainly caused by a large number after the /Count field in the file.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.93%

Chance of exploitation in the next 30 days

Percentile

60%

Versus all other CVEs

30-day change

+0.01 pp

From 0.92% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.93%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (forum.xpdfreader.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Ubuntu1 product
  • ipeAll versions (No fix recorded)
Xpdfreader1 product

2 vendors · 2 products

References

4 links