CVE-2021-27862

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://standards.ieee.org/ieee/802.2/1048/", "name": "N/A", "tags": ["Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "https://datatracker.ietf.org/doc/draft-ietf-v6ops-ra-guard/08/", "name": "N/A", "tags": ["Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "https://kb.cert.org/vuls/id/855201", "name": "https://kb.cert.org/vuls/id/855201", "tags": [], "refsource": "MISC"}, {"url": "https://blog.champtar.fr/VLAN0_LLC_SNAP/", "name": "https://blog.champtar.fr/VLAN0_LLC_SNAP/", "tags": [], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using LLC/SNAP headers with invalid length and Ethernet to Wifi frame conversion (and optionally VLAN0 headers)."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-290"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-27862", "ASSIGNER": "cert@cert.org"}}, "impact": {"baseMetricV3": {"cvssV3": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.7, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.8}}, "publishedDate": "2022-09-27T19:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:ieee:ieee_802.2:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "802.2h-1997"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:ietf:p802.1q:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "d1.0"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-10-12T13:15Z"}