CVE-2020-14153: In IJG JPEG (aka libjpeg) from version 8 through 9c, jdhuff.c has an out-of-bounds array read for certain tabl

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HIGH 7.1UPGRADE

CVE-2020-14153 is a high-severity flaw (CVSS 7.1) affecting libjpeg. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In IJG JPEG (aka libjpeg) from version 8 through 9c, jdhuff.c has an out-of-bounds array read for certain table pointers.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-125
Published	2020-06-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ijg

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-06-15 17:15 UTCPublished CVE record published
2026-06-17 02:54 UTCUpdated Record last modified

ijg libjpeg UPGRADE

Affected: >= 8 and <= 9c

Fixed in: newer than 9c

Safe to downgrade to: a release before 8

1. Check installed version

apt-cache policy libjpeg || rpm -q libjpeg || libjpeg --version

2. UPGRADE to newer than 9c (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade libjpeg

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade libjpeg

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 8 (Debian / Ubuntu)

apt-cache madison libjpeg sudo apt install libjpeg=<VERSION_BEFORE_8> sudo apt-mark hold libjpeg

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list libjpeg sudo dnf downgrade libjpeg-<VERSION_BEFORE_8> sudo dnf versionlock add libjpeg

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-14153?

libjpeg: upgrade to newer than 9c. Exact commands for each OS are on this page.

Is CVE-2020-14153 being exploited?

CVE-2020-14153 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-14153 affect?

CVE-2020-14153 affects libjpeg. Severity is high (CVSS 7.1). In IJG JPEG (aka libjpeg) from version 8 through 9c, jdhuff.c has an out-of-bounds array read for certain table pointers.

How urgent is CVE-2020-14153?

Priority 45/100. High severity; Public exploit reference

Related CVEs

CVE-2023-37837 MEDIUM 6.5 UPGRADE libjpeg commit db33a6e was discovered to contain a heap buffer overflow via LineBitmapRequester::EncodeRegion
CVE-2023-37836 MEDIUM 6.5 UPGRADE libjpeg commit db33a6e was discovered to contain a reachable assertion via BitMapHook::BitMapHook at bitmaphoo
CVE-2022-37770 MEDIUM 6.5 MITIGATE libjpeg commit 281daa9 was discovered to contain a segmentation fault via LineMerger::GetNextLowpassLine at li
CVE-2022-37769 MEDIUM 6.5 MITIGATE libjpeg commit 281daa9 was discovered to contain a segmentation fault via HuffmanDecoder::Get at huffmandecode
CVE-2022-37768 HIGH 7.5 MITIGATE libjpeg commit 281daa9 was discovered to contain an infinite loop via the component Frame::ParseTrailer.

References

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