CVE-2026-27671: CWE-121: Stack-based Buffer Overflow in SAP_SE SAP NetWeaver AS ABAP and ABAP Platform
CVE-2026-27671 is a critical stack-based buffer overflow vulnerability in the SAP Kernel used by SAP NetWeaver AS ABAP and ABAP Platform. An unauthenticated attacker can exploit improper RFC protocol validation by sending a crafted RFC request, causing memory corruption. This vulnerability impacts confidentiality, integrity, and availability of the affected application versions.
AI Analysis
Technical Summary
This vulnerability arises from improper validation of the RFC protocol in the SAP Kernel component of SAP NetWeaver AS ABAP and ABAP Platform. An attacker without authentication can send a specially crafted RFC request that triggers logical errors in memory management, resulting in stack-based buffer overflow and memory corruption. The vulnerability affects multiple specified versions of SAP NetWeaver AS ABAP and ABAP Platform and carries a CVSS 3.1 base score of 9.8, indicating critical severity with network attack vector, no privileges required, and no user interaction needed.
Potential Impact
Successful exploitation can lead to complete compromise of the affected SAP application, impacting confidentiality, integrity, and availability. The attacker can cause memory corruption that may allow arbitrary code execution or denial of service, severely affecting the business processes relying on the SAP platform.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been documented at this time. Organizations should monitor SAP security advisories closely for updates and apply patches promptly once available.
CVE-2026-27671: CWE-121: Stack-based Buffer Overflow in SAP_SE SAP NetWeaver AS ABAP and ABAP Platform
Description
CVE-2026-27671 is a critical stack-based buffer overflow vulnerability in the SAP Kernel used by SAP NetWeaver AS ABAP and ABAP Platform. An unauthenticated attacker can exploit improper RFC protocol validation by sending a crafted RFC request, causing memory corruption. This vulnerability impacts confidentiality, integrity, and availability of the affected application versions.
CVSS v3.1
Score 9.8critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from improper validation of the RFC protocol in the SAP Kernel component of SAP NetWeaver AS ABAP and ABAP Platform. An attacker without authentication can send a specially crafted RFC request that triggers logical errors in memory management, resulting in stack-based buffer overflow and memory corruption. The vulnerability affects multiple specified versions of SAP NetWeaver AS ABAP and ABAP Platform and carries a CVSS 3.1 base score of 9.8, indicating critical severity with network attack vector, no privileges required, and no user interaction needed.
Potential Impact
Successful exploitation can lead to complete compromise of the affected SAP application, impacting confidentiality, integrity, and availability. The attacker can cause memory corruption that may allow arbitrary code execution or denial of service, severely affecting the business processes relying on the SAP platform.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been documented at this time. Organizations should monitor SAP security advisories closely for updates and apply patches promptly once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- sap
- Date Reserved
- 2026-02-23T17:50:10.512Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2769ece29bf47b50f6725d
Added to database: 06/09/2026, 01:18:36 UTC
Last enriched: 06/16/2026, 08:45:34 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 359
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