Adobe After Effects up to 25.6.4/26.0 File integer overflow

Summaryinfo

A vulnerability has been found in Adobe After Effects up to 25.6.4/26.0 and classified as critical. This vulnerability affects unknown code of the component File Handler. This manipulation causes integer overflow. The identification of this vulnerability is CVE-2026-34644. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Adobe After Effects up to 25.6.4/26.0 and classified as critical. Affected by this vulnerability is an unknown part of the component File Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

After Effects versions 26.0, 25.6.4 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.

The advisory is shared at helpx.adobe.com. This vulnerability is known as CVE-2026-34644 since 03/30/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/13/2026).

The vulnerability scanner Nessus provides a plugin with the ID 314330 (Adobe After Effects < 25.6.5 / 26.0 < 26.2 Multiple Arbitrary code execution (APSB26-48) (macOS)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (314330). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Multimedia Processing Software

Vendor

• Adobe

Name

• After Effects

Version

• 25.6.0
• 25.6.1
• 25.6.2
• 25.6.3
• 25.6.4
• 26.0

License

• commercial

Website

• Vendor: https://www.adobe.com/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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