Is CVE-2021-46822 in the CISA KEV catalog?

No. CVE-2021-46822 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-46822?

CVE-2021-46822 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-46822?

CVE-2021-46822 has an EPSS score of 1.01% (59th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-46822?

Upgrade libjpeg-turbo on debian 12 to 1:2.1.1-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2021-46822

MEDIUM

5.5

CVSS v3

NVD

Description

The PPM reader in libjpeg-turbo through 2.0.90 mishandles use of tjLoadImage for loading a 16-bit binary PPM file into a grayscale buffer and loading a 16-bit binary PGM file into an RGB buffer. This is related to a heap-based buffer overflow in the get_word_rgb_row function in rdppm.c.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

libjpeg-turboDebian

Fixed in:1:2.1.1-1CVE-2021-46822

libjpeg-turboUbuntu

Fixed in:1.5.2-0ubuntu5.18.04.6USN-5631-1

Fixed in:2.0.3-0ubuntu1.20.04.3USN-5631-1

libjpeg-turbo8Ubuntu

Fixed in:1.5.2-0ubuntu5.18.04.6USN-5631-1

Fixed in:2.0.3-0ubuntu1.20.04.3USN-5631-1

libturbojpegUbuntu

Fixed in:1.5.2-0ubuntu5.18.04.6USN-5631-1

Fixed in:2.0.3-0ubuntu1.20.04.3USN-5631-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.01%probability of exploitation in 30 days

59thpercentile

Moderate risk: more likely to be exploited than 59% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory1

exchange.xforce.ibmcloud.com

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.