CVE-2021-42721 Adobe Bridge Use After Free could lead to Arbitrary code execution
A use-after-free vulnerability in Adobe Bridge allows arbitrary code execution if a user opens a malicious file.
- 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-2021-42721?
CVE-2021-42721 is a high-severity use after free vulnerability in Adobe Media Encoder, published on 16 Nov 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 Bridge versions 11.1.1 and earlier are affected by a use-after-free vulnerability in the processing of Format event actions that could result in 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-416
Which versions are affected by CVE-2021-42721?
It affects 1 product.
Products include Adobe Media Encoder.
How do I fix CVE-2021-42721?
No fix has been published for CVE-2021-42721 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-2021-42721 being exploited?
There is no known exploitation of CVE-2021-42721 in the wild and no public exploit code.
Other vulnerabilities in Adobe Media Encoder
Sources
Also known as GHSA-5cwc-v53c-rj65.