{"api_version":"1","generated_at":"2026-05-11T11:04:35+00:00","cve":"CVE-2026-43373","urls":{"html":"https://cve.report/CVE-2026-43373","api":"https://cve.report/api/cve/CVE-2026-43373.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43373","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43373"},"summary":{"title":"net: ncsi: fix skb leak in error paths","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ncsi: fix skb leak in error paths\n\nEarly return paths in NCSI RX and AEN handlers fail to release\nthe received skb, resulting in a memory leak.\n\nSpecifically, ncsi_aen_handler() returns on invalid AEN packets\nwithout consuming the skb. Similarly, ncsi_rcv_rsp() exits early\nwhen failing to resolve the NCSI device, response handler, or\nrequest, leaving the skb unfreed.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-08 15:16:48","updated_at":"2026-05-11 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Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43373","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 138635cc27c9737f940c3aa80912ff7a61c825af 9891d7f4f1ede473c54b49776ae07755083eef06 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 138635cc27c9737f940c3aa80912ff7a61c825af fef5aa6e3bcf3c8053307642663a63b7362d7552 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 138635cc27c9737f940c3aa80912ff7a61c825af 81d6aee32f8f7bbc175c05dbf61f4430bfb88c4a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 138635cc27c9737f940c3aa80912ff7a61c825af 59962588197863d0d746879f193905c0c6b3df49 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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the Linux kernel, the following vulnerability has been resolved:\n\nnet: ncsi: fix skb leak in error paths\n\nEarly return paths in NCSI RX and AEN handlers fail to release\nthe received skb, resulting in a memory leak.\n\nSpecifically, ncsi_aen_handler() returns on invalid AEN packets\nwithout consuming the skb. Similarly, ncsi_rcv_rsp() exits early\nwhen failing to resolve the NCSI device, response handler, or\nrequest, leaving the skb unfreed."}],"metrics":[{"cvssV3_1":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-05-11T06:33:51.054Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/9891d7f4f1ede473c54b49776ae07755083eef06"},{"url":"https://git.kernel.org/stable/c/fef5aa6e3bcf3c8053307642663a63b7362d7552"},{"url":"https://git.kernel.org/stable/c/81d6aee32f8f7bbc175c05dbf61f4430bfb88c4a"},{"url":"https://git.kernel.org/stable/c/59962588197863d0d746879f193905c0c6b3df49"},{"url":"https://git.kernel.org/stable/c/553366c271479c0d571dd1bb5d1bcde4747fb82e"},{"url":"https://git.kernel.org/stable/c/b70c4e5e711931cdd56e6e905737b72f1e649189"},{"url":"https://git.kernel.org/stable/c/87138dde2d6937b12b967f28fe598a7d59000ae4"},{"url":"https://git.kernel.org/stable/c/5c3398a54266541610c8d0a7082e654e9ff3e259"}],"title":"net: ncsi: fix skb leak in error paths","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43373","datePublished":"2026-05-08T14:21:23.875Z","dateReserved":"2026-05-01T14:12:56.006Z","dateUpdated":"2026-05-11T06:33:51.054Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-08 15:16:48","lastModifiedDate":"2026-05-11 08:16:11","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43373","Ordinal":"1","Title":"net: ncsi: fix skb leak in error paths","CVE":"CVE-2026-43373","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43373","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ncsi: fix skb leak in error paths\n\nEarly return paths in NCSI RX and AEN handlers fail to release\nthe received skb, resulting in a memory leak.\n\nSpecifically, ncsi_aen_handler() returns on invalid AEN packets\nwithout consuming the skb. Similarly, ncsi_rcv_rsp() exits early\nwhen failing to resolve the NCSI device, response handler, or\nrequest, leaving the skb unfreed.","Type":"Description","Title":"net: ncsi: fix skb leak in error paths"}]}}}