CVE-2020-9715

Use-After-Free in Adobe Acrobat. CISA confirmed attackers exploit it and added it to its Known Exploited Vulnerabilities catalog on 13 April 2026.

Product
Adobe Acrobat
Added to CISA's catalog
Federal fix-by date
Ransomware
No known use in ransomware campaigns

CISA’s description.

Adobe Acrobat contains a use-after-free vulnerability that allows for code execution
  • CVE-2026-48356 Unrestricted Upload of File with Dangerous Type, added
  • CVE-2026-71362 Incorrect Authorization, added
  • CVE-2026-75650 Improper Neutralization of Special Elements Used in a Template Engine, added
  • CVE-2026-48282 Path Traversal, added
  • CVE-2009-3459 Heap-Based Buffer Overflow, added
  • CVE-2026-34621 Prototype Pollution, added

Every flaw CISA confirmed exploited in the last 30 days is on the exploit watch. This is not security advice. Check the vendor’s advisory before acting. From CISA’s catalog of 4 November 2026.