CVE-2021-40756: Adobe After Effects

Medium severity, CVSS 5.5. EPSS: 1.4% chance of exploitation in the next 30 days.

Adobe After Effects version 18.4.1 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Affected products

• Adobe After Effects: up to and including 18.4.1

Published 2021-11-18. Last modified 2026-06-17.