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

Source: https://junglewise.ai/threats/cve-2026-83661-photoshop-desktop-is-affected-by-an-integer-overflow-or  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/photoshop). Vendors: [Adobe](https://junglewise.ai/threats/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

- [https://www.adobe.com/trust/security/products/photoshop/apsb26-158.html](https://www.adobe.com/trust/security/products/photoshop/apsb26-158.html)

## Related threats

- [Adobe Photoshop out-of-bounds write vulnerability](https://junglewise.ai/threats/cve-2026-97312-photoshop-desktop-is-affected-by-an-out-of-bounds-write)
- [Adobe Photoshop out-of-bounds write leading to arbitrary code execution](https://junglewise.ai/threats/cve-2026-96523-photoshop-desktop-is-affected-by-an-out-of-bounds-write)
- [Adobe Photoshop out-of-bounds write in file parsing](https://junglewise.ai/threats/cve-2026-96522-photoshop-desktop-is-affected-by-an-out-of-bounds-write)
- [Adobe Photoshop double free arbitrary code execution](https://junglewise.ai/threats/cve-2026-95635-photoshop-desktop-is-affected-by-a-double-free-vulnerability-that)
- [Adobe Photoshop NULL pointer dereference](https://junglewise.ai/threats/cve-2026-105896-photoshop-desktop-is-affected-by-a-null-pointer-dereference)