VULNERABILITY INTELLIGENCE

CVE-2021-27634

CVSS score5.9 MEDIUM

EPSS probability1.32%

CISA KEVNot currently listed

Published2021-06-09

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

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 ThCpicDtCreate () causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.

Weakness classification

cna@sap.com: CWE-787
nvd@nist.gov: CWE-787

Primary references

cna@sap.com — Permissions Required, Vendor Advisory
cna@sap.com — Broken Link, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Permissions Required, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Broken Link, Vendor Advisory