CVE-2026-34707: 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…

PriorityP342high7.8CVSS 3.1

AVLACLPRNUIRSUCHIHAH

EPSS

0.18%

7.5th percentile

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.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
adobe	incopy	< 20.5.4	20.5.4
adobe	incopy	<= 20.5.3	—
adobe	incopy	>= 21.0 < 21.4	21.4

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