5.5

CVE-2021-27548: xpdfreader xpdf NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-27548DEBIAN-CVE-2021-27548
Published 18-05-2022Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-27548 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in xpdfreader xpdf. EPSS estimates a 0.75% chance of exploitation in the next 30 days, higher than 54.2% 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 · v3.1 (NVD)
EPSS score
0.75%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 18-05-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

There is a Null Pointer Dereference vulnerability in the XFAScanner::scanNode() function in XFAScanner.cc in xpdf 4.03.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.75%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

+0.01 pp

From 0.74% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.75%

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

Ubuntu3 products
  • ipeAll versions (No fix recorded)
  • texlive-binAll versions (No fix recorded)
  • xpdfAll versions (No fix recorded)
Debian1 product
  • texlive-bin< 2022.20220321.62855-3
Xpdfreader1 product

3 vendors · 5 products

References

4 links