High severity7.5NVD Advisory· Published Jun 9, 2021· Updated Jun 17, 2026
CVE-2021-27633
CVE-2021-27633
Description
SAP NetWeaver AS for ABAP (RFC Gateway), versions - KRNL32NUC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73,7.77,7.81,7.82,7.83, allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network which will trigger an internal error in the system due to improper input validation in method ThCPIC() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.
Affected products
18cpe:2.3:a:sap:netweaver_abap:kernel_7.22:*:*:*:*:*:*:*+ 15 more
- cpe:2.3:a:sap:netweaver_abap:kernel_7.22:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:kernel_7.49:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:kernel_7.53:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:kernel_7.73:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:kernel_8.04:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:krnl32nuc_7.22:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:krnl32nuc_7.22ext:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.22:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.22ext:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.49:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.22:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.22ext:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.49:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.53:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.73:*:*:*:*:*:*:*
- cpe:2.3:a:sap:netweaver_abap:krnl64uc_8.04:*:*:*:*:*:*:*
- SAP SE/SAP NetWeaver AS for ABAP (RFC Gateway)v5Range: < KRNL32NUC - 7.22
Patches
Vulnerability mechanics
References
2- launchpad.support.sap.comnvdPermissions RequiredVendor Advisory
- wiki.scn.sap.com/wiki/pages/viewpage.actionnvdBroken LinkVendor Advisory
News mentions
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