CVE-2021-27610

Name: CVE-2021-27610
Creator: NVD / NIST
Published: 2021-06-16T15:15:08.363+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.58%

Last modified Jun 17, 2026

CVE-2021-27610 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. SAP NetWeaver ABAP Server and ABAP Platform, versions - 700, 701, 702, 731, 740, 750, 751, 752, 753, 754, 755, 804, does not create information about internal and external RFC user in consistent and distinguished format, which could lead to improper authentication and may be exploited by malicious users to obtain illegitimate access to the system.. EPSS estimates a 1.58% chance of exploitation in the next 30 days.

Description

SAP NetWeaver ABAP Server and ABAP Platform, versions - 700, 701, 702, 731, 740, 750, 751, 752, 753, 754, 755, 804, does not create information about internal and external RFC user in consistent and distinguished format, which could lead to improper authentication and may be exploited by malicious users to obtain illegitimate access to the system.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.58%

72.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Sap	Netweaver Abap	700
Sap	Netweaver Abap	701
Sap	Netweaver Abap	702
Sap	Netweaver Abap	731
Sap	Netweaver Abap	740
Sap	Netweaver Abap	750
Sap	Netweaver Abap	751
Sap	Netweaver Abap	752
Sap	Netweaver Abap	753
Sap	Netweaver Abap	754
Sap	Netweaver Abap	755
Sap	Netweaver Abap	804
Sap	Netweaver Application Server Abap	700
Sap	Netweaver Application Server Abap	701
Sap	Netweaver Application Server Abap	702
Sap	Netweaver Application Server Abap	731
Sap	Netweaver Application Server Abap	740
Sap	Netweaver Application Server Abap	750
Sap	Netweaver Application Server Abap	751
Sap	Netweaver Application Server Abap	752
Sap	Netweaver Application Server Abap	753
Sap	Netweaver Application Server Abap	754
Sap	Netweaver Application Server Abap	755
Sap	Netweaver Application Server Abap	804

References

https://launchpad.support.sap.com/#/notes/3007182Permissions Required, Vendor Advisory
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999Vendor Advisory
https://launchpad.support.sap.com/#/notes/3007182Permissions Required, Vendor Advisory
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999Vendor Advisory

Timeline

Published: Jun 16, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27610?

How severe is CVE-2021-27610?

CVE-2021-27610 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.58% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27610?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-27610?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST