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

published 2022-05-18 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14299

cvss: 5.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits: 0; none known

Patch / fix

distros 1

texlive-bin Debian 14, Debian 13, Debian 12 2022.20220321.62855-3

debian advisories DEBIAN-CVE-2021-27548

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-27548 updated 2025-11-21

xpdf: a Null Pointer Dereference vulnerability in the XFAScanner::scanNode() function

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

forum.xpdfreader.com https://forum.xpdfreader.com/viewtopic.php?f=3&t=42115 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

CWE-476 NULL Pointer Dereference

References

forum.xpdfreader.com /viewtopic.php?f=3&t=42115
exploit, vendor-advisory

Sources

CVE List CVE-2021-27548
NVD CVE-2021-27548

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary