{"schema_version":"1","data":[{"id":15872,"advisory_id":"f8ff5579-6ff2-4fb6-a73d-8c2fbe630e33","revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2021-4135","source_published_at":"2022-07-14T19:30:19+00:00","published_at":"2026-10-25T01:07:05.687732+00:00","extraction_method":"structured","technologies":["core-cve","kernel"],"cve_ids":["CVE-2021-4135"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"CVE-2021-4135","summary":"A memory leak vulnerability was found in the Linux kernel's eBPF for the Simulated networking device driver in the way user uses BPF for the device such that function nsim_map_alloc_elem being called. A local user could use this flaw to get unauthorized access to some data.","evidence":"cve:CVE-2021-4135","products":[{"name":{"value":"kernel","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2021-4135","aliases":["CVE-2021-4135"],"metrics":[],"affected":[{"vendor":"n/a","product":"kernel","versions":[{"status":"affected","version":"Linux kernel versions prior to 5.16-rc6"}]}],"modified":"2026-10-08T21:03:11.381Z","provider":"cve","references":["https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=481221775d53"],"provider_metadata":{"adp":[{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=481221775d53","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T17:16:04.239Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-4135","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-08T20:54:19.435661Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-08T21:03:11.381Z"}}],"cna":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2022-07-14T19:30:19.000Z"}}},"related_cves":[{"value":"CVE-2021-4135","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":null}}],"next_after":15872,"next_before":15872}