CVE-2021-40724 Adobe Acrobat Reader Android Abritrary Code Execution Vulnerability

What is CVE-2021-40724?

CVE-2021-40724 is a high-severity path traversal vulnerability in Adobe Acrobat Reader, published on 15 Oct 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Acrobat Reader for Android versions 21.8.0 (and earlier) are affected by a Path traversal vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Weakness: CWE-22

Which versions are affected by CVE-2021-40724?

It affects 1 product.

Products include Adobe Acrobat Reader.

How do I fix CVE-2021-40724?

No fix has been published for CVE-2021-40724 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2021-40724 being exploited?

There is no known exploitation of CVE-2021-40724 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Other vulnerabilities in Adobe Acrobat Reader

• CVE-2009-0927 Adobe Reader and Adobe Acrobat Stack-Based Buffer Overflow Exploited High 8.8
• CVE-2014-0511 Memory corruption in n/a Critical 10.0
• CVE-2014-0512 Security feature bypass in n/a Critical 10.0
• CVE-2004-1152 Memory corruption in n/a Critical 10.0
• CVE-2004-1153 Memory corruption in n/a Critical 10.0

All Adobe Acrobat Reader vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-29r2-9wmj-m244.