What is CVE-2022-32978?

CVE-2022-32978 is a medium-severity vulnerability in Jpeg Libjpeg, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2022-06-10.

How severe is CVE-2022-32978?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Jpeg Libjpeg

CVE-2022-32978

There is an assertion failure in SingleComponentLSScan::ParseMCU in singlecomponentlsscan.cpp in libjpeg before 1.64 via an empty JPEG-LS scan.

Published 2022-06-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (57.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Jpeg Libjpeg

Weakness classification (CWE)

CWE-617 — Reachable Assertion

References

github.com/thorfdbg/libjpeg/issues/75 (Exploit, Third Party Advisory, Issue Tracking)
github.com/thorfdbg/libjpeg/commit/4746b577931e926a49e50de9720a4946de3069a7 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-32978?: CVE-2022-32978 is a medium-severity vulnerability in Jpeg Libjpeg, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2022-06-10.
How severe is CVE-2022-32978?: Medium severity. CVSS v3 base score is 6.5 out of 10.