{"id":"CVE-2026-67861","aliases":["DEBIAN-CVE-2026-67861","EUVD-2026-52963","GHSA-5hm6-mc9f-6w2p","UBUNTU-CVE-2026-67861"],"status":"published","title":"An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service...","description":"An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the UA_Client_getRemoteDataTypes component","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.0075,"percentile":0.55471,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2026-08-04T00:00:00Z","modified":"2026-10-28T02:30:43Z","affected":[{"source":"osv","ecosystem":"Debian:13","package":"open62541","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.11.1-1","1.4.18-1"]},{"source":"osv","ecosystem":"Debian:14","package":"open62541","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.11.1-1","1.4.18-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"open62541","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.11.1-1build1","1.4.18-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"open62541","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.11.1-1","1.4.11.1-1build1"]}],"references":[{"url":"https://github.com/open62541/open62541/issues/8140","tags":["exploit","report"]},{"url":"https://raw.githubusercontent.com/open62541/open62541/v1.5.5/examples/custom_datatype/client_types_custom.c","tags":["web","report"]},{"url":"https://raw.githubusercontent.com/open62541/open62541/v1.5.5/src/client/ua_client_util.c","tags":["web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67861","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-5hm6-mc9f-6w2p"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67861.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-67861","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-67861","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-67861","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-67861","description":"An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the UA_Client_getRemoteDataTypes component","status":"published","published":"2026-08-04T00:00:00Z","modified":"2026-08-05T14:34:06.954Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N","level":"high","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:20:06.562031Z"}],"euvd":[{"id":"EUVD-2026-52963","description":"An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the UA_Client_getRemoteDataTypes component","status":"published","published":"2026-08-04T00:00:00Z","modified":"2026-08-05T14:34:06Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N","level":"high"}],"updated_at":"2026-11-02T18:02:10.319044Z"}],"ghsa":[{"id":"GHSA-5hm6-mc9f-6w2p","title":"An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service...","description":"An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the UA_Client_getRemoteDataTypes component","status":"published","published":"2026-08-05T00:30:39Z","modified":"2026-08-05T18:32:36Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:10:07.926015Z"}],"nvd":[{"id":"CVE-2026-67861","description":"An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the UA_Client_getRemoteDataTypes component","status":"published","published":"2026-08-04T22:17:16.46Z","modified":"2026-09-03T18:04:16.263Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:12:34.643497Z"}],"osv":[{"id":"CVE-2026-67861","description":"An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the UA_Client_getRemoteDataTypes component","status":"published","published":"2026-08-04T00:00:00Z","modified":"2026-10-28T02:30:43.026453441Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N","level":"high"}],"updated_at":"2026-11-02T15:45:14.46177Z"},{"id":"DEBIAN-CVE-2026-67861","description":"An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the UA_Client_getRemoteDataTypes component","status":"published","published":"2026-08-04T22:17:16.46Z","modified":"2026-10-01T03:03:38.920276501Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:46:01.68444Z"},{"id":"UBUNTU-CVE-2026-67861","description":"An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the UA_Client_getRemoteDataTypes component","status":"published","published":"2026-08-04T22:17:00Z","modified":"2026-10-17T13:00:39.951189642Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:53.710209Z"}]}}