Vulnerability record · CVE-2021-29449 · published 14 April 2021

CVE-2021-29449: Pi-hole improper privilege management vulnerability

Pi Hole · Pi Hole

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.

7.8 CVSS 3.1 High EPSS 1.8% · top 21.8% CWE-269 · Improper privilege managementCWE-78 · OS command injection

7.8CVSS 3.1 base score, v2 7.2

1.8%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

7References, 7 tagged exploit

17 Jun 2026Last modified by NVD

Description

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Pi Hole Pi Hole

References

Link	Tags
https://github.com/pi-hole/pi-hole/security/advisories/GHSA-3597-244c-wrpj	ExploitThird Party Advisory
https://github.com/pi-hole/pi-hole/security/advisories/GHSA-3597-244c-wrpj	ExploitThird Party Advisory
https://github.com/pi-hole/pi-hole/security/advisories/GHSA-3597-244c-wrpj	ExploitThird Party Advisory
https://github.com/pi-hole/pi-hole/security/advisories/GHSA-3597-244c-wrpj	ExploitThird Party Advisory
http://packetstormsecurity.com/files/163715/Pi-Hole-Remove-Commands-Linux-Privilege-Escalation.html	ExploitThird Party AdvisoryVDB Entry
https://github.com/pi-hole/pi-hole/security/advisories/GHSA-3597-244c-wrpj	ExploitThird Party Advisory
https://www.compass-security.com/fileadmin/Research/Advisories/2021-02_CSNC-2021-008_Pi-hole_Privilege_Escalation.txt	ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.2CVE-2020-8816Pi-hole AdminLTE DHCP static lease OS command injectionPi-hole Web v4.3.2 (AdminLTE) fails to sanitize the MAC address field of a DHCP static lease, allowing OS command injection. A privileged dashboard u…KEVEPSS 78%analysed29 May 2020 9.0CVE-2025-34087Pi-hole os command injection vulnerabilityAn authenticated command injection vulnerability exists in Pi-hole versions up to 3.3. When adding a domain to the allowlist via the web interface, t…EPSS 7.0%3 Jul 2025 8.8CVE-2026-50130Pi-hole vulnerabilityPi-hole is a DNS sinkhole that protects devices from unwanted content without installing any client-side software. From 6.0 to 6.4.2, a user with cod…EPSS 0.26%14 Jul 2026 8.8CVE-2024-34361Pi-hole server-side request forgery (ssrf) vulnerabilityPi-hole is a DNS sinkhole that protects devices from unwanted content without installing any client-side software. A vulnerability in versions prior …EPSS 2.8%5 Jul 2024 8.8CVE-2021-32706Pi-hole Web interface regex filter flaw enables code injectionPi-hole Web interface before version 5.5.1 has an unescaped period in the validDomainWildcard preg_match filter, allowing a malicious character to pa…EPSS 60%analysed4 Aug 2021 8.8CVE-2021-29448Pi-hole ftldns cross-site scripting vulnerabilityPi-hole is a Linux network-level advertisement and Internet tracker blocking application. The Stored XSS exists in the Pi-hole Admin portal, which ca…EPSS 0.67%15 Apr 2021 8.8CVE-2020-11108Pi-hole Gravity updater unrestricted file upload leads to RCEThe Gravity updater in Pi-hole through 4.4 contains a code error in gravity_DownloadBlocklistFromUrl in gravity.sh that lets an authenticated user up…EPSS 78%analysed11 May 2020 8.8CVE-2019-13051Pi-hole os command injection vulnerabilityPi-Hole 4.3 allows Command Injection.EPSS 12%9 Oct 2019

Source: NIST National Vulnerability Database (record CVE-2021-29449), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.