Is CVE-2026-33727 actively exploited?

No active exploitation of CVE-2026-33727 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33727 be exploited remotely?

No. CVE-2026-33727 requires local access to exploit.

What is the CVSS score of CVE-2026-33727?

CVE-2026-33727 has a CVSS score of 6.7 (MEDIUM).

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MEDIUM

CVE-2026-33727

CWE-269Published: April 6, 2026· Updated: Apr 9, 2026

6.7

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.5th

Official Description

Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. Version 6.4 has a local privilege-escalation vulnerability allows code execution as root from the low-privilege pihole account. Important context: the pihole account uses nologin, so this is not a direct interactive-login issue. However, nologin does not prevent code from running as UID pihole if a Pi-hole component is compromised. In that realistic post-compromise scenario, attacker-controlled content in /etc/pihole/versions is sourced by root-run Pi-hole scripts, leading to root code execution. This vulnerability is fixed in 6.4.1.

NVD Source

Technical Analysis

CVE-2026-33727 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.7.