Integer overflow in Adobe Photoshop - CVE-2026-83661
Published: October 16, 2026
Vulnerability identifier: #VU155972
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-2026-83661
CWE-ID: CWE-190
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 integer overflow within the parsing of JPEG image data. A remote attacker can trick a victim to open a specially crafted PDF file, trigger integer 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 Photoshop
How to mitigate CVE-2026-83661
Install updates from vendor's website.
Adobe Photoshop - addressed in versions 26.11.8, 27.11