Vulnerability Description
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.
CVSS Score
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Inetutils | <= 2.7 |
Related Weaknesses (CWE)
References
- https://lists.gnu.org/archive/html/bug-inetutils/2026-03/msg00031.htmlExploitVendor Advisory
- https://www.openwall.com/lists/oss-security/2026/03/12/4Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2026/03/14/1Mailing ListThird Party Advisory
- https://github.com/watchtowrlabs/watchtowr-vs-telnetd-CVE-2026-32746Third Party Advisory
FAQ
What is CVE-2026-32746?
CVE-2026-32746 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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.
How severe is CVE-2026-32746?
CVE-2026-32746 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-32746?
Check the references section above for vendor advisories and patch information. Affected products include: Gnu Inetutils.