EUVD-2026-12065CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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3Tags
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.
Analysis
OOB write in GNU inetutils telnetd through 2.7 via LINEMODE SLC handler.
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Remediation
Within 24 hours: Inventory all systems running GNU inetutils telnetd and assess internet exposure; disable telnetd service if not operationally critical and document justification if retention is required. Within 7 days: Implement network segmentation to restrict telnetd access to authorized administrative networks only; deploy monitoring for telnet service activity and connection attempts. …
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External POC / Exploit Code
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