CVE-2021-40998

Name: CVE-2021-40998
Creator: NVD / NIST
Published: 2021-10-15T15:15:09.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 2.81%

Last modified Jun 17, 2026

CVE-2021-40998 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. A remote arbitrary command execution vulnerability was discovered in Aruba ClearPass Policy Manager version(s): ClearPass Policy Manager 6.10.x prior to 6.10.2 - - ClearPass Policy Manager 6.9.x prior to 6.9.7-HF1 - - ClearPass Policy Manager 6.8.x prior to 6.8.9-HF1. Aruba has released patches for ClearPass Policy Manager that address this security vulnerability.. EPSS estimates a 2.81% chance of exploitation in the next 30 days.

Description

A remote arbitrary command execution vulnerability was discovered in Aruba ClearPass Policy Manager version(s): ClearPass Policy Manager 6.10.x prior to 6.10.2 - - ClearPass Policy Manager 6.9.x prior to 6.9.7-HF1 - - ClearPass Policy Manager 6.8.x prior to 6.8.9-HF1. Aruba has released patches for ClearPass Policy Manager that address this security vulnerability.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

2.81%

84.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-77

Affected Software

Vendor	Product	Versions
Arubanetworks	Clearpass Policy Manager	>= 6.8.0, < 6.8.9
Arubanetworks	Clearpass Policy Manager	>= 6.9.0, < 6.9.7
Arubanetworks	Clearpass Policy Manager	>= 6.10.0, < 6.10.2
Arubanetworks	Clearpass Policy Manager	6.8.9
Arubanetworks	Clearpass Policy Manager	6.9.7

References

https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-018.txtThird Party Advisory
https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-018.txtThird Party Advisory

Timeline

Published: Oct 15, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-40998?

How severe is CVE-2021-40998?

CVE-2021-40998 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 2.81% probability of exploitation in the next 30 days.

How do I fix CVE-2021-40998?

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-2021-40998?

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

Scan your code now

Source: NVD / NIST