{"schema_version":1,"title":"NeXTSTEP vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in NeXTSTEP: 0 in the last 7 days and 0 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-1999-1193, was published on 14 May 1991.","url":"https://junglewise.ai/threats/technologies/nextstep","json_url":"https://junglewise.ai/threats/technologies/nextstep.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/nextstep","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":3,"all_time":4,"critical":1,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":0},"latest":[{"cve":"CVE-1999-1193","cvss":10,"slug":"cve-1999-1193-next-nextstep-privilege-escalation-via-me-user-in-wheel-group","title":"NeXT NeXTstep privilege escalation via me user in wheel group","severity":"critical","exploited":false,"published_at":"1991-05-14T04:00:00+00:00","url":"https://junglewise.ai/threats/cve-1999-1193-next-nextstep-privilege-escalation-via-me-user-in-wheel-group"},{"cve":"CVE-1999-1392","cvss":7.2,"slug":"cve-1999-1392-next-nextstep-privilege-escalation-in-restore0-9-installation","title":"NeXT NeXTSTEP privilege escalation in restore0.9 installation script","severity":"high","exploited":false,"published_at":"1990-10-03T04:00:00+00:00","url":"https://junglewise.ai/threats/cve-1999-1392-next-nextstep-privilege-escalation-in-restore0-9-installation"},{"cve":"CVE-1999-1391","cvss":7.2,"slug":"cve-1999-1391-next-nextstep-privilege-escalation-in-npd","title":"NeXT NeXTSTEP privilege escalation in npd","severity":"high","exploited":false,"published_at":"1990-10-03T04:00:00+00:00","url":"https://junglewise.ai/threats/cve-1999-1391-next-nextstep-privilege-escalation-in-npd"},{"cve":"CVE-1999-1198","cvss":7.2,"slug":"cve-1999-1198-next-nextstep-privilege-escalation-in-builddisk","title":"NeXT NeXTSTEP privilege escalation in BuildDisk","severity":"high","exploited":false,"published_at":"1990-10-03T04:00:00+00:00","url":"https://junglewise.ai/threats/cve-1999-1198-next-nextstep-privilege-escalation-in-builddisk"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Next","slug":"next","vulnerabilities":3,"url":"https://junglewise.ai/threats/technologies/next"}],"technology":{"hub":true,"name":"NeXTSTEP","slug":"nextstep","vendor":{"name":"Next","slug":"next","url":"https://junglewise.ai/threats/vendors/next"},"aliases":[],"category":"operating-system","homepage":"https://www.next.com/","description":"NeXTSTEP is an object-oriented, multitasking operating system developed by NeXT Computer.","url":"https://junglewise.ai/threats/technologies/nextstep"},"most_severe":[{"cve":"CVE-1999-1193","cvss":10,"slug":"cve-1999-1193-next-nextstep-privilege-escalation-via-me-user-in-wheel-group","title":"NeXT NeXTstep privilege escalation via me user in wheel group","severity":"critical","exploited":false,"published_at":"1991-05-14T04:00:00+00:00","url":"https://junglewise.ai/threats/cve-1999-1193-next-nextstep-privilege-escalation-via-me-user-in-wheel-group"},{"cve":"CVE-1999-1392","cvss":7.2,"slug":"cve-1999-1392-next-nextstep-privilege-escalation-in-restore0-9-installation","title":"NeXT NeXTSTEP privilege escalation in restore0.9 installation script","severity":"high","exploited":false,"published_at":"1990-10-03T04:00:00+00:00","url":"https://junglewise.ai/threats/cve-1999-1392-next-nextstep-privilege-escalation-in-restore0-9-installation"},{"cve":"CVE-1999-1391","cvss":7.2,"slug":"cve-1999-1391-next-nextstep-privilege-escalation-in-npd","title":"NeXT NeXTSTEP privilege escalation in npd","severity":"high","exploited":false,"published_at":"1990-10-03T04:00:00+00:00","url":"https://junglewise.ai/threats/cve-1999-1391-next-nextstep-privilege-escalation-in-npd"},{"cve":"CVE-1999-1198","cvss":7.2,"slug":"cve-1999-1198-next-nextstep-privilege-escalation-in-builddisk","title":"NeXT NeXTSTEP privilege escalation in BuildDisk","severity":"high","exploited":false,"published_at":"1990-10-03T04:00:00+00:00","url":"https://junglewise.ai/threats/cve-1999-1198-next-nextstep-privilege-escalation-in-builddisk"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}