Use-after-free in Adobe Reader and Adobe Acrobat - CVE-2026-27278
Published: March 10, 2026
Vulnerability identifier: #VU123750
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-2026-27278
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when handling PDF files. A remote attacker can trick the victim into opening a specially crafted PDF file and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Affected software
Adobe Reader
Adobe Acrobat
Adobe Acrobat
How to mitigate CVE-2026-27278
Install updates from vendor's website.
Adobe Reader - update to 25.001.21288
Adobe Acrobat - addressed in versions 24.001.30356, 25.001.21288
Adobe Acrobat - addressed in versions 24.001.30356, 25.001.21288