Vulnerability Details CVE-2021-27633
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 50.9%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
Products affected by CVE-2021-27633
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cpe:2.3:a:sap:netweaver_abap:kernel_7.22
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cpe:2.3:a:sap:netweaver_abap:kernel_7.49
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cpe:2.3:a:sap:netweaver_abap:kernel_7.53
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cpe:2.3:a:sap:netweaver_abap:kernel_7.73
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cpe:2.3:a:sap:netweaver_abap:kernel_8.04
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cpe:2.3:a:sap:netweaver_abap:krnl32nuc_7.22
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cpe:2.3:a:sap:netweaver_abap:krnl32nuc_7.22ext
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cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.22
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cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.22ext
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cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.49
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cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.22
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cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.22ext
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cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.49
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cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.53
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cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.73
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cpe:2.3:a:sap:netweaver_abap:krnl64uc_8.04