CVE-2021-44740

Name: CVE-2021-44740
Creator: NVD / NIST
Published: 2022-01-14T20:15:13.387+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 3.63%

Last modified Jun 17, 2026

CVE-2021-44740 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. EPSS estimates a 3.63% chance of exploitation in the next 30 days.

Description

Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

3.63%

88.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Adobe	Acrobat Dc	>= 15.008.20082, <= 21.007.20099
Adobe	Acrobat Reader Dc	>= 15.008.20082, <= 21.007.20099
Adobe	Acrobat	>= 17.011.30059, <= 17.011.30204
Adobe	Acrobat	>= 20.001.30005, <= 20.004.30017
Adobe	Acrobat Reader	>= 17.011.30059, <= 17.011.30204
Adobe	Acrobat Reader	>= 20.001.30005, <= 20.004.30017

References

https://helpx.adobe.com/security/products/acrobat/apsb22-01.htmlVendor Advisory
https://helpx.adobe.com/security/products/acrobat/apsb22-01.htmlVendor Advisory

Timeline

Published: Jan 14, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-44740?

How severe is CVE-2021-44740?

CVE-2021-44740 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 3.63% probability of exploitation in the next 30 days.

How do I fix CVE-2021-44740?

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-2021-44740?

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

Scan your code now

Source: NVD / NIST