CVE-2020-12620
CVE-2020-12620 is a high-severity vulnerability in Pi-hole with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 7.2
- EPSS exploit prediction: 2% (73rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Pi-hole
- Published:
- Last modified:
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).
Frequently asked questions
- What is CVE-2020-12620?
- 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).
- How severe is CVE-2020-12620?
- CVE-2020-12620 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-12620 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-12620?
- CVE-2020-12620 affects Pi-hole. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-12620?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-12620 published?
- CVE-2020-12620 was published on 2020-07-30 and last updated on 2026-06-17.
References
- https://0xpanic.github.io/2020/07/21/Pihole.html
- https://github.com/pi-hole/pi-hole
- https://pi-hole.net/
Affected products (1)
- cpe:2.3:a:pi-hole:pi-hole:*:*:*:*:*:*:*:*
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