After Effects
CVE-2026-21321
HIGH
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from Vendor (adobe) · only source for this CVE.
CVSS VectorVendor: adobe
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Arbitrary code execution in Adobe After Effects 25.6 and earlier through an integer overflow vulnerability affecting file processing. An attacker can exploit this by crafting a malicious file that, when opened by a user, executes code with the privileges of the current user. No patch is currently available for this high-severity vulnerability.
Technical ContextAI
Classified as CWE-190 (Integer Overflow or Wraparound). Affects After Effects. 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.
RemediationAI
Monitor vendor advisories for a patch.
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Same weakness CWE-190 – Integer Overflow or Wraparound
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External POC / Exploit Code
Leaving vuln.today