What’s Vulnerable › Vulnerabilities

CVE-2023-37491: Improper Authorization check vulnerability in SAP Message Server

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-08-08 · updated 2026-06-17
• Weakness: CWE-863

Description

The ACL (Access Control List) of SAP Message Server - versions KERNEL 7.22, KERNEL 7.53, KERNEL 7.54, KERNEL 7.77, RNL64UC 7.22, RNL64UC 7.22EXT, RNL64UC 7.53, KRNL64NUC 7.22, KRNL64NUC 7.22EXT, can be bypassed in certain conditions, which may enable an authenticated malicious user to enter the network of the SAP systems served by the attacked SAP Message server. This may lead to unauthorized read and write of data as well as rendering the system unavailable.

Affected products

• SAP_SE SAP Message Server: kernel_7.22, kernel_7.53, kernel_7.54, kernel_7.77, krnl64nuc_7.22, krnl64nuc_7.22ex (+3)

References

• https://me.sap.com/notes/3344295
• https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html
• https://me.sap.com/notes/3344295
• https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html

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