AT&T Bell Labs vulnerabilities
We track 1 vulnerability in AT&T Bell Labs products. 1 is rated high or critical, and none are known to be exploited. The most recent was published on March 13, 2026.
1vulnerabilities
0critical
1high
0exploited
7.8average CVSS score
Latest AT&T Bell Labs vulnerabilities
- 7.8 High severity
UNIX: Buffer Copy without Checking Size of Input
In UNIX Fourth Research Edition (v4), the su command is vulnerable to a buffer overflow due to the 'password' variable having a fixed size of 100 bytes. A local user can exploit this to gain root privileges. It is unlikely that UNIX v4 is running anywhere outs