What’s Vulnerable › Vulnerabilities

CVE-2021-40756: Adobe After Effects NULL Pointer Dereference Application Denial of Service

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-11-18 · updated 2026-06-17
• Weakness: CWE-476

Description

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: through 18.4.1

References

• https://helpx.adobe.com/security/products/after_effects/apsb21-79.html
• https://helpx.adobe.com/security/products/after_effects/apsb21-79.html

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