CVE-2021-21446

Name: CVE-2021-21446
Creator: NVD / NIST
Published: 2021-01-12T15:15:14.47+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.44%

Last modified Jun 17, 2026

CVE-2021-21446 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. SAP NetWeaver AS ABAP, versions 740, 750, 751, 752, 753, 754, 755, allows an unauthenticated attacker to prevent legitimate users from accessing a service, either by crashing or flooding the service, this has a high impact on the availability of the service.. EPSS estimates a 1.44% chance of exploitation in the next 30 days.

Description

SAP NetWeaver AS ABAP, versions 740, 750, 751, 752, 753, 754, 755, allows an unauthenticated attacker to prevent legitimate users from accessing a service, either by crashing or flooding the service, this has a high impact on the availability of the service.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.44%

69.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
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

References

https://launchpad.support.sap.com/#/notes/3000306Permissions Required
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=564760476Vendor Advisory
https://launchpad.support.sap.com/#/notes/3000306Permissions Required
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=564760476Vendor Advisory

Timeline

Published: Jan 12, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-21446?

How severe is CVE-2021-21446?

CVE-2021-21446 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.44% probability of exploitation in the next 30 days.

How do I fix CVE-2021-21446?

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-2021-21446?

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

Scan your code now

Source: NVD / NIST