Heap-based buffer overflow in Adobe Reader and Adobe Acrobat - CVE-2021-44709

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Main Vulnerability Database Vulnerabilities #VU59433

Heap-based buffer overflow in Adobe Reader and Adobe Acrobat - CVE-2021-44709

Published: January 11, 2022


Vulnerability identifier: #VU59433
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-44709
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote attacker can trick the victim to open a specially crafted PDF file, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

Adobe Reader
Adobe Acrobat
Foxit PDF Reader for Windows
Foxit PDF Editor (formerly Foxit PhantomPDF)

How to mitigate CVE-2021-44709

Install updates from vendor's website.

Adobe Reader - addressed in versions 17.011.30207, 20.004.30020, 21.011.20039
Adobe Acrobat - addressed in versions 17.011.30207, 20.004.30020, 21.011.20039
Foxit PDF Reader for Windows - update to 11.2.1.53537
Foxit PDF Editor (formerly Foxit PhantomPDF) - update to 11.2.1.53537

External References

Related Security Bulletins