What is CVE-2022-41843?

CVE-2022-41843 is a medium-severity vulnerability in Xpdfreader Xpdf, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2022-09-30.

How severe is CVE-2022-41843?

Medium severity. CVSS v3 base score is 5.5 out of 10.

NULL pointer dereference in Xpdfreader Xpdf

CVE-2022-41843

An issue was discovered in Xpdf 4.04. There is a crash in convertToType0 in fofi/FoFiType1C.cc, a different vulnerability than CVE-2022-38928.

Published 2022-09-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (27.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Affected products

Xpdfreader Xpdf — versions 4.04

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

forum.xpdfreader.com/viewtopic.php (Exploit, Vendor Advisory)
forum.xpdfreader.com/viewtopic.php (Vendor Advisory)

Frequently asked questions

What is CVE-2022-41843?: CVE-2022-41843 is a medium-severity vulnerability in Xpdfreader Xpdf, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2022-09-30.
How severe is CVE-2022-41843?: Medium severity. CVSS v3 base score is 5.5 out of 10.