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CVE-2026-48692

FastNetMon Community Edition through 1.2.9 exposes a gRPC API server on port 50052 with no authentication mechanism. The server is initialized with grpc::InsecureServerCredentials() (src/fastnetmon.cpp line 477) and a source code comment explicitly acknowledges 'Listen on the given address without any authentication mechanism.' None of the RPC methods in src/api.cpp (ExecuteBan, ExecuteUnBan, GetBanlist, GetTotalTrafficCounters, etc.) perform any credential verification. The ExecuteBan and Execu
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:61bce2daef7d8b820b7b496015e0229f7677539c7dccbb2006e36964678d320e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-306","description":"CWE-306 Missing Authentication for Critical Function","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0d977ee3166ba033f3f64a328763dda3d76306ea17904af45c5b696520db96a5 · sha256:145ff33b99d70612… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"n/a","lang":"en","type":"text"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0d977ee3166ba033f3f64a328763dda3d76306ea17904af45c5b696520db96a5 · sha256:145ff33b99d70612… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0d977ee3166ba033f3f64a328763dda3d76306ea17904af45c5b696520db96a5 · sha256:145ff33b99d70612… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d977ee3166ba033f3f64a328763dda3d76306ea17904af45c5b696520db96a5 · sha256:145ff33b99d70612… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-306","description":"CWE-306 Missing Authentication for Critical Function","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0d977ee3166ba033f3f64a328763dda3d76306ea17904af45c5b696520db96a5 · sha256:145ff33b99d70612… · /containers/adp/0/problemTypes/0/descriptions/0
{"description":"n/a","lang":"en","type":"text"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0d977ee3166ba033f3f64a328763dda3d76306ea17904af45c5b696520db96a5 · sha256:145ff33b99d70612… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"url":"https://github.com/pavel-odintsov/fastnetmon"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d977ee3166ba033f3f64a328763dda3d76306ea17904af45c5b696520db96a5 · sha256:145ff33b99d70612… · /containers/cna/references/0
{"url":"https://github.com/pavel-odintsov/fastnetmon/blob/master/src/api.cpp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d977ee3166ba033f3f64a328763dda3d76306ea17904af45c5b696520db96a5 · sha256:145ff33b99d70612… · /containers/cna/references/1
{"url":"https://github.com/pavel-odintsov/fastnetmon/blob/master/src/fastnetmon.cpp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d977ee3166ba033f3f64a328763dda3d76306ea17904af45c5b696520db96a5 · sha256:145ff33b99d70612… · /containers/cna/references/2
{"url":"https://lorikeetsecurity.com/blog/fastnetmon-cve-2026-48692-grpc-no-auth"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d977ee3166ba033f3f64a328763dda3d76306ea17904af45c5b696520db96a5 · sha256:145ff33b99d70612… · /containers/cna/references/3

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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