{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-41285","sourceIdentifier":"cve@mitre.org","published":"2026-04-21T00:16:29.480","lastModified":"2026-06-17T10:46:26.627","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In OpenBSD through 7.8, the slaacd and rad daemons have an infinite loop when they receive a crafted ICMPv6 Neighbor Discovery (ND) option (over a local network) with length zero, because of an \"nd_opt_len * 8 - 2\" expression with no preceding check for whether nd_opt_len is zero."}],"affected":[{"source":"cve@mitre.org","affectedData":[{"vendor":"OpenBSD","product":"OpenBSD","defaultStatus":"unaffected","versions":[{"version":"0","lessThanOrEqual":"7.8","versionType":"custom","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"cve@mitre.org","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":2.8,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-04-21T13:27:20.927005Z","id":"CVE-2026-41285","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"cve@mitre.org","type":"Secondary","description":[{"lang":"en","value":"CWE-1284"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-835"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*","versionEndIncluding":"7.8","matchCriteriaId":"3F720762-1801-4CB9-827D-2D7F670BFC6B"}]}]}],"references":[{"url":"https://github.com/openbsd/src/commit/086c5738bcd3c203bcc08d024fcf983cb409115f","source":"cve@mitre.org","tags":["Patch"]},{"url":"https://www.openbsd.org/errata78.html","source":"cve@mitre.org","tags":["Product","Release Notes"]},{"url":"https://www.rfc-editor.org/rfc/rfc4861#section-4.6","source":"cve@mitre.org","tags":["Not Applicable"]}]}}