---
id: CVE-2026-21321
title: >-
  After Effects versions 25.6 and earlier are affected by an Integer Overflow or
  Wraparound vulnerability that could result in arbitrary code execution in the
  context of the current user
summary: >-
  After Effects versions 25.6 and earlier are affected by an Integer Overflow or
  Wraparound vulnerability that could result in arbitrary code execution in the
  context of the current user. Exploitation of this issue requires user
  interactio…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-190
vendor: adobe
product: after_effects
affected:
  - after_effects < 25.6.4
patched:
  - after_effects 25.6.4
published: '2026-02-10'
updated: '2026-08-27'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-21321'
references:
  - url: 'https://helpx.adobe.com/security/products/after_effects/apsb26-15.html'
    label: psirt@adobe.com
tags:
  - nvd
epss: 0.00219
epssPercentile: 0.10995
ingestedAt: '2026-08-27T21:08:15.811Z'
---

## Overview

After Effects versions 25.6 and earlier are affected by an Integer Overflow or Wraparound 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.

## Affected

- `after_effects < 25.6.4`

## Remediation

Upgrade past the affected range:

- `after_effects 25.6.4`