CVE-2023-21576: Adobe Photoshop Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-02-17 · updated 2026-06-17
Weakness: CWE-787

Description

Photoshop version 23.5.3 (and earlier), 24.1 (and earlier) are affected by an out-of-bounds write 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.

Affected products

Adobe Photoshop: from 23.0.0 before 23.5.4; from 24.0.0 before 24.1.1 — fixed in 23.5.4, 24.1.1

How to fix

Upgrade to a fixed version: Adobe Photoshop 23.5.4, 24.1.1. Check the vendor advisory for mitigations.

References

https://helpx.adobe.com/security/products/photoshop/apsb23-11.html
https://helpx.adobe.com/security/products/photoshop/apsb23-11.html

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