The "me" user in NeXT NeXTstep 2.1 and earlier has wheel group privileges, which could allow the me user to use the su command to become root.
https://exchange.xforce.ibmcloud.com/vulnerabilities/581
http://www.securityfocus.com/bid/20
http://www.cert.org/advisories/CA-1991-06.html
Source: Mitre, NVD
Published: 1991-05-14
Updated: 2026-06-16
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.00962