CVE-2026-32746

EUVD-2026-12065
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.
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
mitreCNA
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
gnuinetutils
𝑥
≤ 2.7
CNA
Debian logo
Debian Releases
Debian Product
Codename
inetutils
bookworm
vulnerable
bookworm (security)
2:2.4-2+deb12u3
fixed
bullseye
vulnerable
bullseye (security)
2:2.0-1+deb11u4
fixed
forky
2:2.7-5
fixed
sid
2:2.7-5
fixed
trixie
vulnerable
trixie (security)
2:2.6-3+deb13u3
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://lists.gnu.org/archive/html/bug-inetutils/2026-03/msg00031.html
https://www.openwall.com/lists/oss-security/2026/03/12/4
http://www.openwall.com/lists/oss-security/2026/03/14/1
https://github.com/watchtowrlabs/watchtowr-vs-telnetd-CVE-2026-32746