{"id":"CVE-2026-67859","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-67859","generatedAt":"2026-10-28T09:27:01.496Z","title":"Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Discovery/LDS handling.","description":"Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Discovery/LDS handling.","published":"2026-08-04T22:17:16.000Z","lastModified":"2026-09-03T18:04:16.000Z","status":"Awaiting Analysis","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-120"],"affected":[],"epss":{"score":0.0082,"percentile":0.57078,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.82%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/open62541/open62541/blob/master/examples/discovery/server_lds.c","source":"cve@mitre.org"},{"url":"https://github.com/open62541/open62541/blob/master/src/server/ua_discovery_mdns.c","source":"cve@mitre.org"},{"url":"https://github.com/open62541/open62541/blob/master/src/server/ua_services_discovery.c","source":"cve@mitre.org"},{"url":"https://github.com/open62541/open62541/blob/master/src/util/ua_util.c","source":"cve@mitre.org"},{"url":"https://github.com/open62541/open62541/issues/8095","source":"cve@mitre.org"},{"url":"https://github.com/open62541/open62541/issues/8095","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-67859","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}