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CVE-2023-21578: Adobe Photoshop Font Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

• Severity: medium (CVSS 5.5 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-125

Description

Photoshop version 23.5.3 (and earlier), 24.1 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. 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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