Stack-based buffer overflow in Adobe Reader and Adobe Acrobat - CVE-2026-47959
Published: June 9, 2026
Vulnerability identifier: #VU134037
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-2026-47959
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to stack-based buffer overflow in Adobe Acrobat and Reader when parsing a crafted file. A remote attacker can trick the victim into opening a specially crafted file to execute arbitrary code.
User interaction is required to open a crafted file.
Affected software
Adobe Reader
Adobe Acrobat
Adobe Acrobat
How to mitigate CVE-2026-47959
Install security update from vendor's website.
Adobe Reader - update to 26.001.21662
Adobe Acrobat - addressed in versions 24.001.30383, 26.001.21662
Adobe Acrobat - addressed in versions 24.001.30383, 26.001.21662