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Public proof of conceptFix available

CVE-2026-32772

A public proof of concept exists; no exploitation attested.

  • Published2026-03-16
  • WeaknessCWE-669

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

telnet in GNU inetutils through 2.7 allows servers to read arbitrary environment variables from clients via NEW_ENVIRON SEND USERVAR.

Timeline

dates in UTC
  1. 2026-03-1614:19CVE publishedNVD

Versions per branch

NVD
Gnu inetutils
BranchAffectedFixed in
2.7≤ 2.7no fix published

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

Products declared by the CNA1 product

As mitre, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • GNU inetutilsother versions: unknown
    Affected
    • ≤ 2.7no fix statedcustom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-03-13

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • inetutilsUbuntu:Pro:22.04:LTSall versions · fixed in 2:2.2-2ubuntu0.2+esm1
  • inetutilsUbuntu:Pro:20.04:LTSall versions · fixed in 2:1.9.4-11ubuntu0.2+esm4
  • inetutilsUbuntu:Pro:18.04:LTSall versions · fixed in 2:1.9.4-3ubuntu0.1+esm5
  • inetutilsUbuntu:Pro:16.04:LTSall versions · fixed in 2:1.9.4-1ubuntu0.1~esm6
  • inetutilsUbuntu:Pro:14.04:LTSall versions · fixed in 2:1.9.2-1ubuntu0.1~esm4
  • inetutilsUbuntu:26.04:LTSall versions · fixed in 2:2.7-2ubuntu1.1
  • inetutilsUbuntu:25.10all versions · fixed in 2:2.6-1ubuntu3.2
  • inetutilsUbuntu:24.04:LTSall versions · fixed in 2:2.5-3ubuntu4.2

4 more package ranges on OSV.dev

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Published
2026-03-16
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-5p6r-4c7p-96fh

Frequently asked questions

What is CVE-2026-32772?

telnet in GNU inetutils through 2.7 allows servers to read arbitrary environment variables from clients via NEW_ENVIRON SEND USERVAR.

Is CVE-2026-32772 actively exploited?

A proof-of-concept exploit exists for CVE-2026-32772, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-32772?

CVE-2026-32772 has a CVSS v3 base score of 4.7 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N.

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Sources for this record