Integer Overflow Vulnerability in Adobe After Effects Software
CVE-2026-21321

7.8HIGH

Key Information:

Vendor

Adobe
Status
After Effects
Vendor
CVE Published:
10 February 2026

What is CVE-2026-21321?

Adobe After Effects versions 25.6 and earlier contain an integer overflow vulnerability that may allow an attacker to execute arbitrary code within the user's session. Successful exploitation of this vulnerability necessitates user action, specifically opening a malicious file that triggers the overflow condition. It is crucial for users to apply security updates and remain vigilant against potential threats to safeguard their creative projects.

Affected Version(s)

After Effects 0 <= 25.6

References

https://helpx.adobe.com/security/products/after_effects/a...
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.