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CVE-2026-42082

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, the AMF in Free5GC does not enforce the concurrent security procedure rules defined in 3GPP TS 33.501 §6.9.5.1. The AMF does not check for ongoing N2 handover procedures before initiating a NAS Security Mode Command, and vice versa. This can lead to mismatches between NAS and AS security contexts in the network and the UE. This vulnerability is fixed in 4.2.2.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4a783bcfa84dfb26ba2bb760b1eb8380e44c7618895b6a84bf0a43a352170db9
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"free5gc","vendor":"free5gc","versions":[{"status":"affected","version":"< 4.2.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d6c25529f70008ece2f57897f48e941b5b0fe3c5924a5640a92fa0a24b48d4cd · sha256:28d5626da9a36d18… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"ADJACENT_NETWORK","availabilityImpact":"LOW","baseScore":3.7,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d6c25529f70008ece2f57897f48e941b5b0fe3c5924a5640a92fa0a24b48d4cd · sha256:28d5626da9a36d18… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-358","description":"CWE-358: Improperly Implemented Security Check for Standard","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d6c25529f70008ece2f57897f48e941b5b0fe3c5924a5640a92fa0a24b48d4cd · sha256:28d5626da9a36d18… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://github.com/free5gc/free5gc/security/advisories/GHSA-vrrx-58h3-prmh"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d6c25529f70008ece2f57897f48e941b5b0fe3c5924a5640a92fa0a24b48d4cd · sha256:28d5626da9a36d18… · /containers/adp/0/references/0
{"name":"https://github.com/free5gc/free5gc/security/advisories/GHSA-vrrx-58h3-prmh","tags":["x_refsource_CONFIRM"],"url":"https://github.com/free5gc/free5gc/security/advisories/GHSA-vrrx-58h3-prmh"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d6c25529f70008ece2f57897f48e941b5b0fe3c5924a5640a92fa0a24b48d4cd · sha256:28d5626da9a36d18… · /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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