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CVE-2021-27631

HIGH
Published 2021-06-09T00:00:00
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CVSS Score

V3.0
7.5
/10
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.003
probability
of exploitation in the wild

There is a 0.3% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.547
Higher than 54.7% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Description

SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server), 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, 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 EnqConvUniToSrvReq() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

SAP SE

SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server)

Affected Versions:

< KRNL32NUC - 7.22 < 7.22EXT < KRNL64NUC - 7.22 < 7.49 < KRNL64UC - 8.04 < 7.22 < 7.53 < 7.73 < KERNEL - 7.22 < 8.04

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-9m82-2363-wc54

Advisory Details

SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server), 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, 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 EnqConvUniToSrvReq() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-27631
WEB https://launchpad.support.sap.com/#/notes/3020104
WEB https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999
WEB http://packetstormsecurity.com/files/164595/SAP-NetWeaver-ABAP-Enqueue-Memory-Corruption.html
WEB http://seclists.org/fulldisclosure/2021/Oct/29

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: October 8, 2022

References

https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999
https://launchpad.support.sap.com/#/notes/3020104
Published: 2021-06-09T00:00:00
Last Modified: 2024-08-03T21:26:10.401Z
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