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CVE-2026-33727

Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. Version 6.4 has a local privilege-escalation vulnerability allows code execution as root from the low-privilege pihole account. Important context: the pihole account uses nologin, so this is not a direct interactive-login issue. However, nologin does not prevent code from running as UID pihole if a Pi-hole component is compromised. In that realistic post-compromise scenario, attacker-controlled content in /
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1f4f3b736a6a3ecba43b0a323c8605ac8a95b7f17444748ee89389e4be2c4b1c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"pi-hole","vendor":"pi-hole","versions":[{"status":"affected","version":">= 6.4, < 6.4.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0af2b0ba5cbf44cb54701b385164fcf202a7dfed66fe3186a82f022c72243df4 · sha256:617fc60a57dd98be… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6.4,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0af2b0ba5cbf44cb54701b385164fcf202a7dfed66fe3186a82f022c72243df4 · sha256:617fc60a57dd98be… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-269","description":"CWE-269: Improper Privilege Management","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0af2b0ba5cbf44cb54701b385164fcf202a7dfed66fe3186a82f022c72243df4 · sha256:617fc60a57dd98be… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/pi-hole/pi-hole/security/advisories/GHSA-c935-8g63-qp74","tags":["x_refsource_CONFIRM"],"url":"https://github.com/pi-hole/pi-hole/security/advisories/GHSA-c935-8g63-qp74"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0af2b0ba5cbf44cb54701b385164fcf202a7dfed66fe3186a82f022c72243df4 · sha256:617fc60a57dd98be… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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