CVE-2022-31620

Name: CVE-2022-31620
Creator: NVD / NIST
Published: 2022-05-25T21:15:08.53+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.34%

Last modified Jun 17, 2026

CVE-2022-31620 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. In libjpeg before 1.64, BitStream<false>::Get in bitstream.hpp has an assertion failure that may cause denial of service. This is related to out-of-bounds array access during arithmetically coded lossless scan or arithmetically coded sequential scan.. EPSS estimates a 1.34% chance of exploitation in the next 30 days.

Description

In libjpeg before 1.64, BitStream<false>::Get in bitstream.hpp has an assertion failure that may cause denial of service. This is related to out-of-bounds array access during arithmetically coded lossless scan or arithmetically coded sequential scan.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

1.34%

67.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-617

Affected Software

Vendor	Product	Versions
Libjpeg Project	Libjpeg	< 1.64

References

https://github.com/thorfdbg/libjpeg/commit/ef4a29a62ab48b8dc235f4af52cfd6319eda9a6aPatch, Third Party Advisory
https://github.com/thorfdbg/libjpeg/issues/70Exploit, Issue Tracking, Third Party Advisory
https://github.com/thorfdbg/libjpeg/commit/ef4a29a62ab48b8dc235f4af52cfd6319eda9a6aPatch, Third Party Advisory
https://github.com/thorfdbg/libjpeg/issues/70Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: May 25, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-31620?

How severe is CVE-2022-31620?

CVE-2022-31620 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.34% probability of exploitation in the next 30 days.

How do I fix CVE-2022-31620?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-31620?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST