CVE-2021-29449

Name: CVE-2021-29449
Creator: NVD / NIST
Published: 2021-04-14T22:15:12.513+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.86%

Last modified Jun 17, 2026

CVE-2021-29449 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. Multiple privilege escalation vulnerabilities were discovered in version 5.2.4 of Pi-hole core. EPSS estimates a 1.86% chance of exploitation in the next 30 days.

Description

Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. Multiple privilege escalation vulnerabilities were discovered in version 5.2.4 of Pi-hole core. See the referenced GitHub security advisory for details.

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

1.86%

76.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Pi-Hole	Pi-Hole	<= 5.2.4

References

https://github.com/pi-hole/pi-hole/security/advisories/GHSA-3597-244c-wrpjExploit, Third Party Advisory
https://github.com/pi-hole/pi-hole/security/advisories/GHSA-3597-244c-wrpjExploit, Third Party Advisory
https://github.com/pi-hole/pi-hole/security/advisories/GHSA-3597-244c-wrpjExploit, Third Party Advisory
https://github.com/pi-hole/pi-hole/security/advisories/GHSA-3597-244c-wrpjExploit, Third Party Advisory
http://packetstormsecurity.com/files/163715/Pi-Hole-Remove-Commands-Linux-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/pi-hole/pi-hole/security/advisories/GHSA-3597-244c-wrpjExploit, Third Party Advisory
https://www.compass-security.com/fileadmin/Research/Advisories/2021-02_CSNC-2021-008_Pi-hole_Privilege_Escalation.txtExploit, Third Party Advisory

Timeline

Published: Apr 14, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-29449?

How severe is CVE-2021-29449?

CVE-2021-29449 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.86% probability of exploitation in the next 30 days.

How do I fix CVE-2021-29449?

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-2021-29449?

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

Scan your code now

Source: NVD / NIST