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TI-2023-19098 Aliases CVE-2023-37491GHSA-97gq-4jqf-cvgm

Improper Authorization check vulnerability in SAP Message Server

Priority MEDIUM 41CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-863.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0053 45th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SAPSAP Message ServerKERNEL 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—No fix listedCNA
  • SAP Message Server VendorSAP Affected 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 Fixed in — No fix listed CNA

CPE configurations NVD · 9

CPEVersionsRoleVendor
cpe:2.3:a:sap:message_server:kernel_7.22:*:*:*:*:*:*:*kernel_7.22VulnerableSAP
cpe:2.3:a:sap:message_server:kernel_7.53:*:*:*:*:*:*:*kernel_7.53VulnerableSAP
cpe:2.3:a:sap:message_server:kernel_7.54:*:*:*:*:*:*:*kernel_7.54VulnerableSAP
cpe:2.3:a:sap:message_server:kernel_7.77:*:*:*:*:*:*:*kernel_7.77VulnerableSAP
cpe:2.3:a:sap:message_server:krnl64nuc_7.22:*:*:*:*:*:*:*krnl64nuc_7.22VulnerableSAP
cpe:2.3:a:sap:message_server:krnl64nuc_7.22ex:*:*:*:*:*:*:*krnl64nuc_7.22exVulnerableSAP
cpe:2.3:a:sap:message_server:rnl64uc_7.22:*:*:*:*:*:*:*rnl64uc_7.22VulnerableSAP
cpe:2.3:a:sap:message_server:rnl64uc_7.22ext:*:*:*:*:*:*:*rnl64uc_7.22extVulnerableSAP
cpe:2.3:a:sap:message_server:rnl64uc_7.53:*:*:*:*:*:*:*rnl64uc_7.53VulnerableSAP
  • cpe:2.3:a:sap:message_server:kernel_7.22:*:*:*:*:*:*:* Versions kernel_7.22 Vulnerable ·SAP
  • cpe:2.3:a:sap:message_server:kernel_7.53:*:*:*:*:*:*:* Versions kernel_7.53 Vulnerable ·SAP
  • cpe:2.3:a:sap:message_server:kernel_7.54:*:*:*:*:*:*:* Versions kernel_7.54 Vulnerable ·SAP
  • cpe:2.3:a:sap:message_server:kernel_7.77:*:*:*:*:*:*:* Versions kernel_7.77 Vulnerable ·SAP
  • cpe:2.3:a:sap:message_server:krnl64nuc_7.22:*:*:*:*:*:*:* Versions krnl64nuc_7.22 Vulnerable ·SAP
  • cpe:2.3:a:sap:message_server:krnl64nuc_7.22ex:*:*:*:*:*:*:* Versions krnl64nuc_7.22ex Vulnerable ·SAP
  • cpe:2.3:a:sap:message_server:rnl64uc_7.22:*:*:*:*:*:*:* Versions rnl64uc_7.22 Vulnerable ·SAP
  • cpe:2.3:a:sap:message_server:rnl64uc_7.22ext:*:*:*:*:*:*:* Versions rnl64uc_7.22ext Vulnerable ·SAP
  • cpe:2.3:a:sap:message_server:rnl64uc_7.53:*:*:*:*:*:*:* Versions rnl64uc_7.53 Vulnerable ·SAP

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-37491
  2. 2026-10-03 Alias added: GHSA-97gq-4jqf-cvgm

References

Advisory 1

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences