CVE-2020-14971

Name: CVE-2020-14971
Creator: NVD / NIST
Published: 2020-06-23T14:15:12.95+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.55%

Last modified Jun 17, 2026

CVE-2020-14971 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Pi-hole through 5.0 allows code injection in piholedhcp (the Static DHCP Leases section) by modifying Teleporter backup files and then restoring them. This occurs in settings.php. EPSS estimates a 0.55% chance of exploitation in the next 30 days.

Description

Pi-hole through 5.0 allows code injection in piholedhcp (the Static DHCP Leases section) by modifying Teleporter backup files and then restoring them. This occurs in settings.php. To exploit this, an attacker would request a backup of limited files via teleporter.php. These are placed into a .tar.gz archive. The attacker then modifies the host parameter in dnsmasq.d files, and then compresses and uploads these files again.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.55%

42.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
Pi-Hole	Pi-Hole	<= 5.0

References

https://blog.telspace.co.za/2020/06/pi-hole-code-injection-cve-2020-14971.htmlThird Party Advisory
https://github.com/pi-hole/AdminLTE/commit/8f6e1365b6dec0ae1aa0b0b15b102c9133f347e5Patch, Third Party Advisory
https://github.com/pi-hole/AdminLTE/commit/c949516ee15fa6a9b0c8511cc4c4d6b0893f3e69Patch, Third Party Advisory
https://github.com/pi-hole/AdminLTE/pull/1443Third Party Advisory
https://blog.telspace.co.za/2020/06/pi-hole-code-injection-cve-2020-14971.htmlThird Party Advisory
https://github.com/pi-hole/AdminLTE/commit/8f6e1365b6dec0ae1aa0b0b15b102c9133f347e5Patch, Third Party Advisory
https://github.com/pi-hole/AdminLTE/commit/c949516ee15fa6a9b0c8511cc4c4d6b0893f3e69Patch, Third Party Advisory
https://github.com/pi-hole/AdminLTE/pull/1443Third Party Advisory

Timeline

Published: Jun 23, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-14971?

How severe is CVE-2020-14971?

CVE-2020-14971 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.

How do I fix CVE-2020-14971?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-14971?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST