https://seclists.org/oss-sec/2026/q1/28: [External] : [oss-security] Buffer overflow in /bin/su from UNIX v4
Published Jan 6, 2026
·Updated
Affected Software
1 affected component
Bell Labs UNIX Version 4
Frequently Asked Questions
1
What is the severity of CVE-2026-0001?
The severity of CVE-2026-0001 is considered critical due to the potential for unauthorized access to privileged accounts.
2
How do I fix CVE-2026-0001?
To fix CVE-2026-0001, update the affected version of /bin/su in Bell Labs UNIX Version 4 as per the latest security patches provided.
3
What are the potential impacts of CVE-2026-0001?
The potential impacts of CVE-2026-0001 include unauthorized access and elevation of privileges, leading to system compromise.
4
Who is affected by CVE-2026-0001?
Users of Bell Labs UNIX Version 4 are affected by CVE-2026-0001 if they are utilizing the vulnerable /bin/su implementation.
5
Is there a workaround for CVE-2026-0001?
A temporary workaround for CVE-2026-0001 is to restrict access to /bin/su until a patch can be applied.