CVE-2026-83661: Adobe Photoshop integer overflow in file parsing

CVE-2026-83661 · Severity: high · CVSS 7.8 · Published 2026-10-13

Adobe Photoshop, a professional image editing application, contains an integer overflow vulnerability that can be exploited through a malicious file. An attacker can execute arbitrary code with the privileges of the user running Photoshop by crafting a specially designed file and tricking a user into opening it. This could lead to data theft, system compromise, or further malware installation.

Technologies: Adobe Photoshop. Vendors: Adobe.

Quick answers

Is CVE-2026-83661 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-83661 being exploited in the wild.
How severe is CVE-2026-83661?
High severity, with a CVSS score of 7.8, published 13 October 2026.
Which products and versions are affected?
Adobe Photoshop 2026 27.10 and earlier, 2025 26.11.7 and earlier.
Is there a fix for CVE-2026-83661?
Yes: fixed in Photoshop 2026 27.11; Photoshop 2025 26.11.8. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-83661 attacked?
It is attacked with local access, in a web application.
Am I affected by CVE-2026-83661?
Check whether you run Adobe Photoshop at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: Photoshop 2026 27.11; Photoshop 2025 26.11.8

Technical details

CVE-2026-83661 is an integer overflow or wraparound vulnerability (CWE-190) in Photoshop's file parsing logic. Exploitation requires local attack vector with user interaction (victim must open a malicious file), and results in arbitrary code execution under the current user's context. The vulnerability allows memory corruption that can be leveraged for code execution.

Affected products

  • Adobe Photoshop 2026 27.10 and earlier, 2025 26.11.7 and earlier

Timeline

  • 2026-10-13: disclosed

References

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