CVE-2026-34707

High

Description

InCopy versions 21.3, 20.5.3 and earlier are affected by a Heap-based Buffer Overflow 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.

SeverityHigh

CVSS7.8

Exploit probability—

Product

Adobe Incopy

PublishedJun 9, 2026

First seenJun 9, 2026

Weakness typeCWE-122CWE-122

How to fix

Update

adobe incopy20.5.4, 21.4 or later

Vendor advisories

helpx.adobe.com/security/products/incopy/apsb26-59.html

Affected products

Product	Affected versions	Fixed in
adobe incopy	v < 20.5.4, 21.0 ≤ v < 21.4	20.5.4, 21.4

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