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PatchSiren cyber security CVE debrief

CVE-2020-8816 Pi-hole CVE debrief

CVE-2020-8816 is a Pi-hole AdminLTE remote code execution vulnerability that CISA has listed in its Known Exploited Vulnerabilities catalog. In the supplied record, CISA’s guidance is to apply updates per vendor instructions. Because the issue is in the KEV catalog, defenders should treat it as a prioritized remediation item even though the corpus does not provide version ranges or deeper technical detail.

Vendor
Pi-hole
Product
AdminLTE
CVSS
CRITICAL 9.1
CISA KEV
Listed
Original CVE published
2021-12-10
Original CVE updated
2021-12-10
Advisory published
2021-12-10
Advisory updated
2021-12-10

Who should care

Pi-hole administrators, IT and security teams responsible for self-hosted Pi-hole deployments, vulnerability management teams, and anyone tracking KEV-listed exposures in internet-facing or internal admin services.

Technical summary

The supplied source corpus identifies CVE-2020-8816 as a remote code execution issue in Pi-hole AdminLTE and confirms it is listed by CISA as a known exploited vulnerability. The corpus does not include CVSS scoring, affected versions, attack prerequisites, or exploit mechanics, so remediation guidance should be based on the official CVE/NVD/CISA references and vendor update instructions.

Defensive priority

High. CISA has added this CVE to the Known Exploited Vulnerabilities catalog, which indicates confirmed exploitation and makes prompt remediation a strong defensive priority.

Recommended defensive actions

  • Inventory all Pi-hole AdminLTE deployments and confirm whether any are exposed or still unpatched.
  • Apply vendor updates per the guidance referenced by CISA as soon as possible.
  • Use the official CVE and NVD records to verify current remediation status and any vendor-provided fixes.
  • Review administrative access paths and limit who can reach the Pi-hole AdminLTE interface.
  • Check logs and configuration for unexpected admin activity around affected deployments.

Evidence notes

This debrief is based only on the supplied CISA KEV source item and the official CVE/NVD links. The source record identifies the vulnerability name, vendor project (Pi-hole), product (AdminLTE), KEV date added (2021-12-10), due date (2022-06-10), and required action to apply updates per vendor instructions. No CVSS score, affected version data, or exploit details were included in the corpus, so those are intentionally not inferred.

Sources and references

Verified primary and authoritative sources

  • CVE-2020-8816 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2020-8816

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2020-8816 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2020-8816

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.