CVE-2026-21353 DNG SDK | Integer Overflow or Wraparound (CWE-190)

High 7.8 Published 10 Feb 2026 Updated 27 Aug 2026

An integer overflow in the Adobe DNG SDK allows arbitrary code execution when a user opens a malicious file.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2026-21353?

CVE-2026-21353 is a high-severity vulnerability in Adobe DNG Software Development Kit (SDK), published on 10 Feb 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

DNG SDK versions 1.7.1 2410 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.

Weakness: CWE-190

Which versions are affected by CVE-2026-21353?

It affects 1 product.

Products include Adobe Dng Software Development Kit.

How do I fix CVE-2026-21353?

Upgrade to a fixed version.

Is CVE-2026-21353 being exploited?

There is no known exploitation of CVE-2026-21353 in the wild and no public exploit code.

Sources

Also known as A-483697751, ASB-A-483697751, GHSA-grq3-5559-p5jq.