Security Alert (A26-04-16): Multiple Vulnerabilities in Adobe Reader/Acrobat

Description:

Patches are released for Adobe Reader and Acrobat to address multiple vulnerabilities. A remote attacker would entice a targeted user to open a specially crafted PDF file to exploit the vulnerabilities.

Affected Systems:

• Acrobat DC (for Windows and macOS) Continuous 26.001.21411 and earlier versions
• Acrobat Reader DC (for Windows and macOS) Continuous 26.001.21411 and earlier versions
• Acrobat 2024 (for Windows) Classic 2024 24.001.30362 and earlier versions
• Acrobat 2024 (for macOS) Classic 2024 24.001.30360 and earlier versions

Impact:

Successful exploitation of the vulnerabilities could lead to remote code execution or information disclosure on an affected system.

Recommendation:

Users of affected systems should update the Adobe Reader and Acrobat to the following versions to address the issue. The updates can be obtained by using the auto-update mechanism or by downloading at the following URLs:
Acrobat DC (for Windows and macOS) Continuous 26.001.21431
https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/index.html#continuous-track
Acrobat Reader DC (for Windows and macOS) Continuous 26.001.21431
https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/index.html#continuous-track
Acrobat 2024 (for Windows and macOS) Classic 2024 24.001.30365
https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/index.html#adobe-acrobat-2024-track

More Information:

• https://helpx.adobe.com/security/products/acrobat/apsb26-44.html
• https://www.hkcert.org/security-bulletin/adobe-monthly-security-update-april-2026
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-34622
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-34626