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Vulnerability · Published Jun 9, 2026 · Assigned by sap

CVE-2026-27671Memory Corruption vulnerability in Application Server ABAP of SAP NetWeaver and ABAP Platform

Critical 9.8

In plain English

A critical-severity stack buffer overflow in SAP NetWeaver AS ABAP and ABAP Platform from SAP_SE. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 61.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Due to improper RFC protocol validation in the SAP Kernel used by the Application Server ABAP of SAP NetWeaver and ABAP Platform, an unauthenticated attacker can send a crafted RFC request that exploits logical errors in memory management, leading to memory corruption. This could lead to a high impact on the confidentiality, integrity, and availability of the application.

Affected products (as reported)

VendorProductVersions
SAP_SE SAP NetWeaver AS ABAP and ABAP Platform KRNL64NUC 7.227.22EXTKRNL64UC 7.22722EXT7.53KERNEL 7.227.547.77

Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References