CVE-2009-0888: Heap-based buffer overflow in the JBIG2 filter in Adobe Reader 7 and Acrobat 7 before 7.1.3, Adobe Reader 8...

Security readout for executives and security teams

This flaw affects old Adobe Reader and Acrobat versions. A malicious PDF could trigger memory corruption in the JBIG2 image filter and may let an attacker run code on the user’s machine. The business risk is concentrated on legacy endpoints still opening PDFs with vulnerable Adobe software. Exposure is likely only where very old Adobe Reader or Acrobat 7, 8, or 9 builds remain installed. Modern managed fleets should be minimally exposed if legacy Adobe PDF readers were removed or updated years ago. Treat as high priority only if legacy Adobe Reader or Acrobat remains in use. For current, patched fleets, prioritize verification and cleanup over emergency response. Mitigation focus: Upgrade affected Adobe Reader and Acrobat versions to the fixed versions or later.; Remove unsupported Reader/Acrobat 7, 8, and 9 installations from endpoints.; Check Adobe APSB09-07 and OS vendor advisories for applicable package guidance..

Prepared

Jun 28, 2026, 10:45 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.