What is CVE-2022-30975?

CVE-2022-30975 is a medium-severity vulnerability in Artifex Mujs, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2022-05-18.

How severe is CVE-2022-30975?

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

NULL pointer dereference in Artifex Mujs

CVE-2022-30975

In Artifex MuJS through 1.2.0, jsP_dumpsyntax in jsdump.c has a NULL pointer dereference, as demonstrated by mujs-pp.

Published 2022-05-18 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.011 (65.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Artifex Mujs
Debian Linux — versions 11.0
Fedoraproject Fedora — versions 37

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

github.com/ccxvii/mujs/issues/161 (Exploit, Patch, Third Party Advisory, Issue Tracking)
www.debian.org/security/2022/dsa-5291 (vendor-advisory, Third Party Advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)

Frequently asked questions

What is CVE-2022-30975?: CVE-2022-30975 is a medium-severity vulnerability in Artifex Mujs, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2022-05-18.
How severe is CVE-2022-30975?: Medium severity. CVSS v3 base score is 5.5 out of 10.