CVE-2026-66767: SAP SE SAP NetWeaver Application Server For Abap And Abap Platform

High severity, CVSS 7.7. EPSS: 0.4% chance of exploitation in the next 30 days.

SAP NetWeaver Application Server for ABAP and ABAP Platform allows an unauthenticated user to send a specially crafted packet that triggers reprocessing of a previously buffered user request, potentially hijacking another user's session under narrow timing conditions. Successful exploitation could result in high impact on confidentiality and integrity, with low impact on availability of the application.

Affected products

• SAP SE SAP NetWeaver Application Server For Abap And Abap Platform: version 7.22EXT only; version 7.53 only; version 8.04 only; version 7.54 only; version 7.77 only; version 7.93 only; …

Published 2026-09-08. Last modified 2026-09-09.