CVE-2025-34087

Pi-hole command injection

8.8 HIGHPublic exploitEPSS 6.88%

Published3 Jul 2025

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredLow

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Pi-hole≤ 3.3

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

https://github.com/pi-hole/web/releases/tag/v4.0Release Notes
https://pi-hole.net/Product
https://pulsesecurity.co.nz/advisories/pihole-v3.3-vulnsExploitThird Party Advisory
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/http/pihole_whitelist_exec.rbExploit
https://vulncheck.com/advisories/pihole-adminlte-whitelist-rceThird Party Advisory

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2025-34087 being actively exploited?

CVE-2025-34087 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 6.88%.

How severe is CVE-2025-34087?

CVE-2025-34087 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 6.88% probability of exploitation.

Which products are affected by CVE-2025-34087?

Affected products include Pi-hole.

How do I fix CVE-2025-34087?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-34087 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.