CVE-2021-29741

Name: CVE-2021-29741
Creator: NVD / NIST
Published: 2021-08-02T15:15:08.06+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.26%

Last modified Jun 17, 2026

CVE-2021-29741 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. IBM AIX 7.1, 7.2, and VIOS 3.1 could allow a local user to exploit a vulnerability in Korn Shell (ksh) to gain root privileges. IBM X-Force ID: 201478.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

Description

IBM AIX 7.1, 7.2, and VIOS 3.1 could allow a local user to exploit a vulnerability in Korn Shell (ksh) to gain root privileges. IBM X-Force ID: 201478.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.26%

17.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Ibm	Vios	3.1
Ibm	Aix	7.1
Ibm	Aix	7.2

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/201478VDB Entry
https://www.ibm.com/support/pages/node/6477018Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/201478VDB Entry
https://www.ibm.com/support/pages/node/6477018Patch, Vendor Advisory

Timeline

Published: Aug 2, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-29741?

IBM AIX 7.1, 7.2, and VIOS 3.1 could allow a local user to exploit a vulnerability in Korn Shell (ksh) to gain root privileges. IBM X-Force ID: 201478.

How severe is CVE-2021-29741?

CVE-2021-29741 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.

How do I fix CVE-2021-29741?

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-2021-29741?

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

Scan your code now

Source: NVD / NIST