CVE-2026-21321CWE-190

CVE-2026-21321

High · published February 10, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
14.9
In the wild
Unconfirmed
What it is

⚡ A simple click could unleash chaos! An integer overflow vulnerability in After Effects versions 25.6 and earlier allows crafty attackers to execute arbitrary code just by getting you to open a malicious file. 🎨💥 Think of it like a soda can that's been shaken up and then opened. Instead of a refreshing burst of fizz, it explodes everywhere! That's what happens here when the integer wraps around—unexpected results that could hijack your system. If exploited, an attacker could gain complete control over your machine, potentially accessing sensitive data, installing malware, or causing system instability. This isn't just an annoying spill; it's a recipe for disaster with sweeping consequences!

Put simply

Think of it like a soda can that's been shaken up and then opened. Instead of a refreshing burst of fizz, it explodes everywhere! That's what happens here when the integer wraps around—unexpected results that could hijack your system. This vulnerability arises from inadequate handling of integer values within After Effects, leading to potential code execution in the context of the current user when a malicious file is opened.

What to do

If exploited, an attacker could gain complete control over your machine, potentially accessing sensitive data, installing malware, or causing system instability. This isn't just an annoying spill; it's a recipe for disaster with sweeping consequences! To protect yourself, update After Effects to the latest version immediately, ensuring you're on at least version 25.7. Also, exercise caution by avoiding files from untrusted sources, and consider implementing file integrity monitoring. 🛡️ You've got this! Patch that software and keep your creative projects safe! 🎉✨

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00245 · 14.9th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2026-02-10T23:16Z
Affected products (1)
ProductVersionsFixed in
adobe/after_effects< 25.6.425.6.4
References (1)
EPSS history
Timeline
  • 10 FEB 17:52Z
    After Effects | Integer Overflow or Wraparound (CWE-190)
    cvelistv5