What’s Vulnerable › Vulnerabilities

CVE-2020-12620

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-07-30 · updated 2026-06-17
• Weakness: CWE-78

Description

Pi-hole 4.4 allows a user able to write to /etc/pihole/dns-servers.conf to escalate privileges through command injection (shell metacharacters after an IP address).

Affected products

• pi-hole: before 5.0 — fixed in 5.0

How to fix

Upgrade to a fixed version: pi-hole 5.0. Check the vendor advisory for mitigations.

References

• https://0xpanic.github.io/2020/07/21/Pihole.html
• https://github.com/pi-hole/pi-hole
• https://pi-hole.net/
• https://0xpanic.github.io/2020/07/21/Pihole.html
• https://github.com/pi-hole/pi-hole
• https://pi-hole.net/

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