CVE-2021-40725 Adobe Acrobat Reader DC AcroForm listbox Use-After-Free Remote Code Execution Vulnerability
Attackers can execute arbitrary code by tricking users into opening malicious PDFs with AcroForm listboxes in Adobe Acrobat Reader.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-40725?
CVE-2021-40725 is a high-severity use after free vulnerability in Adobe Acrobat Dc, published on 7 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 DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a use-after-free vulnerability when processing AcroForm listbox that could result in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
Weakness: CWE-416
Which versions are affected by CVE-2021-40725?
It affects 2 products.
Products include Adobe Acrobat Dc, Adobe Acrobat Reader Dc.
How do I fix CVE-2021-40725?
No fix has been published for CVE-2021-40725 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2021-40725 being exploited?
There is no known exploitation of CVE-2021-40725 in the wild and no public exploit code.
Other vulnerabilities in Adobe Acrobat Dc
Sources
Also known as GHSA-rmgg-v7p7-jv2c.