CVE-2022-31620

In libjpeg before 1.64, BitStream<false>::Get in bitstream.hpp has an assertion failure that may...

6.5 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

1.43%Up 0.5 points since May 26, 2022

What each source reports

NVD Score used 6.5

Record: CVE-2022-31620
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-617
Updated: 2026-11-02

CVE List No score

Record: CVE-2022-31620
Updated: 2026-11-02

EUVDEUVD-2022-53072 No score

Record: EUVD-2022-53072
Updated: 2026-11-03

GitHub AdvisoriesGHSA-62v2-wx44-h68c 6.5

In libjpeg before 1.64, BitStream<false>::Get in bitstream.hpp has an assertion failure that may...

Record: GHSA-62v2-wx44-h68c
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-119
Updated: 2026-11-02

OSVDEBIAN-CVE-2022-31620 6.5

Record: DEBIAN-CVE-2022-31620
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-03

OSVUBUNTU-CVE-2022-31620 6.5

Record: UBUNTU-CVE-2022-31620
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSV No score

Record: CVE-2022-31620
Updated: 2026-11-02

Affected products

libjpeg project libjpeg

Affected packages

Affected packages
Package	Affected	Fixed
`libjpeg` Debian:12	before 0.0~git20220615.842c7ba-1	0.0~git20220615.842c7ba-1
`libjpeg` Debian:13	before 0.0~git20220615.842c7ba-1	0.0~git20220615.842c7ba-1
`libjpeg` Debian:14	before 0.0~git20220615.842c7ba-1	0.0~git20220615.842c7ba-1
`libjpeg` Ubuntu:20.04:LTS	All versions, plus listed versions 0.0~git20190821.87636f3b26b4-10.0~git20190821.87636f3b26b4-1.1	None known
`libjpeg` Ubuntu:22.04:LTS	All versions, plus listed versions 0.0~git20210129.91985dc-1build10.0~git20210908.58455ca-10.0~git20211115.76133b7-10.0~git20211203.966a8ed-1	None known
`libjpeg` Ubuntu:24.04:LTS	All versions, plus listed versions 0.0~git20220805.54ec643-1	None known
`libjpeg` Ubuntu:25.10	All versions, plus listed versions 0.0~git20241105.c719010-1	None known
`libjpeg` Ubuntu:26.10	All versions, plus listed versions 0.0~git20250815.25f7128-20.0~git20250815.25f7128-3	None known
`libjpeg` Ubuntu:26.04:LTS	All versions, plus listed versions 0.0~git20241105.c719010-10.0~git20250815.25f7128-10.0~git20250815.25f7128-2	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-31620 is a medium vulnerability (CVSS 6.5) in Libjpeg Project Libjpeg, published May 25, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.43%, the 73rd percentile. Fixed in libjpeg 0.0~git20220615.842c7ba-1.