CVE-2021-21052 Adobe Animate Out-of-Bounds Write Vulnerability Could Lead To Arbitrary Code Execution
An attacker can achieve arbitrary code execution by tricking a user into opening a malicious file in Adobe Animate.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-21052?
CVE-2021-21052 is a high-severity memory corruption vulnerability in Adobe Animate, published on 11 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Adobe Animate version 21.0.2 (and earlier) is affected by an Out-of-bounds Write 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-787
Which versions are affected by CVE-2021-21052?
It affects 1 product.
Products include Adobe Animate.
How do I fix CVE-2021-21052?
No fix has been published for CVE-2021-21052 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-2021-21052 being exploited?
There is no known exploitation of CVE-2021-21052 in the wild and no public exploit code.
Other vulnerabilities in Adobe Animate
- CVE-2016-7866 Memory corruption in Adobe Animate 15.2.1.95 and earlier
- CVE-2026-48350 Animate | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22)
- CVE-2026-76191 Animate | Improper Control of Generation of Code ('Code Injection') (CWE-94)
- CVE-2026-48345 Animate | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (CWE-78)
- CVE-2026-48349 Animate | Incorrect Authorization (CWE-863)
Sources
Also known as GHSA-q3rv-6rr6-8pjg.