CVE-2026-21351 After Effects | Use After Free (CWE-416)
Attackers can execute arbitrary code by tricking users into opening malicious files in Adobe After Effects.
- 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-2026-21351?
CVE-2026-21351 is a high-severity use after free vulnerability in Adobe After Effects, published on 10 Feb 2026. 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
After Effects versions 25.6 and earlier are affected by a Use After Free vulnerability 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-2026-21351?
It affects 1 product.
Products include Adobe After Effects.
How do I fix CVE-2026-21351?
No fix has been published for CVE-2026-21351 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-2026-21351 being exploited?
There is no known exploitation of CVE-2026-21351 in the wild and no public exploit code.
Other vulnerabilities in Adobe After Effects
- CVE-2020-3765 Memory corruption in Adobe After Effects
- CVE-2021-28586 Adobe After Effects PDF file parsing out-of-bounds write could lead to remote code execution vulnerability
- CVE-2021-28571 Adobe After Effects improper neutralization of special elements could lead to remote code execution
- CVE-2021-28570 Adobe After Effects uncontrolled search path element vulnerability could lead to remote code execution
- CVE-2026-48274 After Effects | Out-of-bounds Write (CWE-787)
Sources
Also known as GHSA-656q-wmv9-fpgj.