What is the CVSS score of CVE-2025-34087?

CVE-2025-34087 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 46.7%.

Which versions of Pi Hole are affected by CVE-2025-34087?

Organizations using Pi-hole face significant risk from CVE-2025-34087, a OS command injection vulnerability rated CVSS 8.8.

Is there a public PoC exploit available for CVE-2025-34087?

Yes, a public proof-of-concept exploit is available for CVE-2025-34087. Prioritise patching immediately. EPSS: 46.7%.

How to fix or mitigate CVE-2025-34087?

Within 24 hours: Identify all affected systems running Pi-hole and apply vendor patches immediately. Validate that input sanitization is in place for all user-controlled parameters.

Pi Hole CVE-2025-34087

EUVD-2025-19902 HIGH

OS Command Injection (CWE-78)

2025-07-03 disclosure@vulncheck.com

Command Injection Pi Hole

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

EUVD ID Assigned

Mar 16, 2026 - 02:12 euvd

EUVD-2025-19902

Analysis Generated

Mar 16, 2026 - 02:12 vuln.today

PoC Detected

Oct 01, 2025 - 14:08 vuln.today

Public exploit code

CVE Published

Jul 03, 2025 - 20:15 nvd

HIGH 8.8

DescriptionCVE.org

An authenticated command injection vulnerability exists in Pi-hole versions up to 3.3. When adding a domain to the allowlist via the web interface, the domain parameter is not properly sanitized, allowing an attacker to append OS commands to the domain string. These commands are executed on the underlying operating system with the privileges of the Pi-hole service user.

This behavior was present in the legacy AdminLTE interface and has since been patched in later versions.

AnalysisAI

Pi-hole versions up to 3.3 contain an authenticated command injection via the domain allowlist functionality. When adding a domain, the domain parameter is passed to OS commands without sanitization, allowing administrators to execute arbitrary commands with the Pi-hole daemon's privileges.

Technical ContextAI

The web interface's allowlist functionality passes the domain parameter to shell commands for updating DNS configuration. Shell metacharacters in the domain field are not sanitized, allowing command injection. Commands execute with the pihole user's privileges, which include sudo rights for DNS management.

RemediationAI

Update Pi-hole to the latest version. Use a strong admin password. Restrict Pi-hole admin interface access to trusted devices. Monitor DNS query logs for unusual resolution patterns.