CVE-2026-35517

HIGH EPSS 53.9%
Published Apr 7, 20262mo ago · Modified Jun 17, 20262w ago
8.8 CVSS 3.1
High
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Published Apr 7, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

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 upstream DNS servers configuration parameter (dns.upstreams). 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.

CVSS Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
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

Threat Intelligence

EPSS Exploit Probability
53.9% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-78 OS Command Injection Injection
CWE-93

Affected Products 1

VendorProductVersionRange
pi-holeftldns*≥6.0  –  ≤6.5

References 1

  • github.com https://github.com/pi-hole/FTL/security/advisories/GHSA-23w8-7333-p9fj
    ExploitVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.