Exploitation reportedNot in CISA KEV yet

CVE-2026-32746

Exploitation reported by one source. First attested on 2026-03-18 by GCVE · kevintel.

Published2026-03-13
WeaknessCWE-120

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2026-03-1319:55CVE publishedNVD
2026-03-1806:09Listed as exploited by GCVEGCVE
2026-03-1806:09Exploitation first reportedGCVE
2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-32746?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-32746?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Gnu inetutils

Branch	Affected	Fixed in	Source
2.7	≤ 2.7	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

lists.gnu.orgVendor Advisory

Detection

read 2026-10-23 19:25 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 7 repositories, unverifiedjeffaf/cve-2026-32746duduLiu8787/CVE-2026-32746-Exploitwatchtowrlabs/watchtowr-vs-telnetd-CVE-2026-32746danindiana/cve-2026-32746-mitigationchosenonehacks/CVE-2026-32746

Sources

NVDCVE recordread 2026-10-23
GCVEexploitation2026-03-18
CISA-ADPSSVC decisionpoc2026-03-21
OpenCVESSVC decisionpoc—
CNACVSS 3.19.8read 2026-10-23
CNAweakness (CWE)CWE-120read 2026-10-23
FIRST EPSSEPSS score2.5 %2026-10-23
PoC-in-GitHubproof of concept7read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2026-03-13
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2026-32746?

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.

Is CVE-2026-32746 actively exploited?

A proof-of-concept exploit exists for CVE-2026-32746, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-32746?

CVE-2026-32746 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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