CVE-2021-29005

Name: CVE-2021-29005
Creator: NVD / NIST
Published: 2021-10-11T13:15:07.323+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.83%

Last modified Jun 17, 2026

CVE-2021-29005 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Insecure permission of chmod command on rConfig server 3.9.6 exists. After installing rConfig apache user may execute chmod as root without password which may let an attacker with low privilege to gain root access on server.. EPSS estimates a 1.83% chance of exploitation in the next 30 days.

Description

Insecure permission of chmod command on rConfig server 3.9.6 exists. After installing rConfig apache user may execute chmod as root without password which may let an attacker with low privilege to gain root access on server.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.83%

76.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-276

Affected Software

Vendor	Product	Versions
Rconfig	Rconfig	3.9.6

References

http://rconfig.comVendor Advisory
https://github.com/mrojz/rconfig-exploit/blob/main/CVE-2021-29005-POC.shExploit, Third Party Advisory
http://rconfig.comVendor Advisory
https://github.com/mrojz/rconfig-exploit/blob/main/CVE-2021-29005-POC.shExploit, Third Party Advisory

Timeline

Published: Oct 11, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-29005?

How severe is CVE-2021-29005?

CVE-2021-29005 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.83% probability of exploitation in the next 30 days.

How do I fix CVE-2021-29005?

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-2021-29005?

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

Scan your code now

Source: NVD / NIST