CVE-2023-21598: Adobe InCopy Font Parsing Use-After-Free Information Disclosure Vulnerability

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-01-13 · updated 2026-06-17
Weakness: CWE-416

Description

Adobe InCopy versions 18.0 (and earlier), 17.4 (and earlier) are affected by a Use After Free 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 InCopy: from 17.0 through 17.4; 18.0

References

https://helpx.adobe.com/security/products/incopy/apsb23-08.html
https://helpx.adobe.com/security/products/incopy/apsb23-08.html

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