Heap-based buffer overflow in Adobe InDesign - CVE-2026-27238
Published: April 15, 2026
Vulnerability identifier: #VU126084
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-27238
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Adobe InDesign
Adobe Experience Manager
Adobe Experience Manager
How to mitigate CVE-2026-27238
Install updates from vendor's website.
Adobe InDesign - addressed in versions 20.5.3, 21.3
Adobe Experience Manager - update to 6.5.25.0
Adobe Experience Manager - update to 6.5.25.0