{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-4018","assignerOrgId":"dbe78b00-5e7b-4fda-8748-329789ecfc5c","state":"PUBLISHED","assignerShortName":"blackberry","dateReserved":"2026-03-11T19:24:46.531Z","datePublished":"2026-07-14T17:34:01.952Z","dateUpdated":"2026-07-15T14:01:13.318Z"},"containers":{"cna":{"providerMetadata":{"orgId":"dbe78b00-5e7b-4fda-8748-329789ecfc5c","shortName":"blackberry","dateUpdated":"2026-07-14T17:34:01.952Z"},"title":"TOCTOU race condition in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS for Safety","datePublic":"2026-07-14T15:20:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-367","description":"CWE-367 Time-of-check time-of-use (TOCTOU) race condition","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-29","descriptions":[{"lang":"en","value":"CAPEC-29 Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions"}]}],"affected":[{"vendor":"BlackBerry Ltd","product":"QNX Software Development Platform","versions":[{"status":"affected","version":"7.1"},{"status":"affected","version":"cpe:2.3:a:blackberry:qnx_software_development_platform:7.1:*:*:*:*:*:*:*","versionType":"cpe"},{"status":"affected","version":"7.0"},{"status":"affected","version":"cpe:2.3:a:blackberry:qnx_software_development_platform:7.0:*:*:*:*:*:*:*","versionType":"cpe"}],"defaultStatus":"unaffected"},{"vendor":"BlackBerry Ltd","product":"QNX OS for Safety","versions":[{"status":"affected","version":"2.2.8 and earlier"},{"status":"affected","version":"cpe:2.3:o:blackberry:qnx_os_for_safety:2.2:8:*:*:*:*:*:*","versionType":"cpe"},{"status":"affected","version":"2.1.5 and earlier"},{"status":"affected","version":"cpe:2.3:o:blackberry:qnx_os_for_safety:2.1:5:*:*:*:*:*:*","versionType":"cpe"},{"status":"affected","version":"2.0.3 and earlier"},{"status":"affected","version":"cpe:2.3:o:blackberry:qnx_os_for_safety:2.0:3:*:*:*:*:*:*","versionType":"cpe"}],"defaultStatus":"unaffected"},{"vendor":"BlackBerry Ltd.","product":"QNX OS for Medical","versions":[{"status":"affected","version":"2.0.2 and earlier"},{"status":"affected","version":"cpe:2.3:o:blackberry:qnx_os_for_medical:2.0:2:*:*:*:*:*:*","versionType":"cpe"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"TOCTOU Race Condition in specific trace commands of the TraceEvent() system call could allow an attacker with local access and with the PROCMGR_AID_TRACE ability, to cause information disclosure, data tampering or a crash of the QNX Neutrino kernel.","supportingMedia":[{"type":"text/html","base64":false,"value":"TOCTOU Race Condition in specific trace commands of the TraceEvent() system call could allow an attacker with local access and with the PROCMGR_AID_TRACE ability, to cause information disclosure, data tampering or a crash of the QNX Neutrino kernel."}]}],"references":[{"url":"https://support.blackberry.com/pkb/s/article/141213"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"MEDIUM","baseScore":6.4,"vectorString":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H"}}],"source":{"advisory":"https://support.blackberry.com/pkb/s/article/141213","discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-15T14:00:49.532095Z","id":"CVE-2026-4018","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-15T14:01:13.318Z"}}]}}