CVE-2026-35520HIGH 8.8EPSS p48.3%

CVE-2026-35520CVE-2026-35520

Description

FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, the Pi-hole FTL engine contains a Remote Code Execution (RCE) vulnerability in the DHCP lease time configuration parameter (dhcp.leaseTime). This vulnerability allows an authenticated attacker to inject arbitrary dnsmasq configuration directives through newline characters, ultimately achieving command execution on the underlying system. This vulnerability is fixed in 6.6.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.70% probability of exploitation · percentile 48.3% · 2026-06-19T12:03:05Z
Published2026-04-07
Last modified2026-04-28

Underlying weaknesses· 2

CWE-78CWE-93

References

  1. https://github.com/pi-hole/FTL/security/advisories/GHSA-fqv2-qhfh-ghcj
  2. https://github.com/pi-hole/FTL/security/advisories/GHSA-fqv2-qhfh-ghcj

2

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements used in an OS Command ('OS Command Injection')cwe-780%live
WeaknessImproper Neutralization of CRLF Sequences ('CRLF Injection')cwe-930%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.