telnetd in GNU inetutils through 2.7 allows an out-of-bounds write in the LINEMODE SLC (Set Local Characters) suboption handler because add_slc does not check whether the buffer is full.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 5
https://lists.gnu.org/archive/html/bug-inetutils/2026-03/msg00031.html
cve@mitre.org
https://www.openwall.com/lists/oss-security/2026/03/12/4
cve@mitre.org
http://www.openwall.com/lists/oss-security/2026/03/14/1
af854a3a-2127-422b-91ae-364da2661108
https://github.com/jeffaf/cve-2026-32746
134c704f-9b21-4f2e-91b3-4a467353bcc0
https://github.com/watchtowrlabs/watchtowr-vs-telnetd-CVE-2026-32746
134c704f-9b21-4f2e-91b3-4a467353bcc0