CVE-2021-40763 Adobe Character Animator Memory Corruption could lead to Arbitrary code execution

High 7.8 Published Updated

Attackers can execute arbitrary code by tricking users into opening a malicious WAF file in Adobe Character Animator.

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-2021-40763?

CVE-2021-40763 is a high-severity memory corruption vulnerability in Adobe Character Animator (Preview 4), published on 16 Mar 2022. 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

Adobe Character Animator version 4.4 (and earlier) is affected by a memory corruption vulnerability when parsing a WAF file, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability.

Weakness: CWE-119, CWE-788

Which versions are affected by CVE-2021-40763?

It affects 1 product.

Products include Adobe Character Animator.

How do I fix CVE-2021-40763?

No fix has been published for CVE-2021-40763 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-40763 being exploited?

There is no known exploitation of CVE-2021-40763 in the wild and no public exploit code.

Sources

Also known as GHSA-rw7m-53x4-4gv3.

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