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Fencer Vulns
low 3.4

CVE-2026-32772 json

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

published 2026-03-13 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-12154

cvss
3.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

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

Patch / fix

  • inetutils Debian 12 2:2.4-2+deb12u3
  • inetutils Debian 13 2:2.6-3+deb13u3
  • inetutils Debian 14 2:2.7-5

debian advisories DEBIAN-CVE-2026-32772

  • inetutils Ubuntu 24.04 LTS 2:2.5-3ubuntu4.2
  • inetutils Ubuntu 25.10 2:2.6-1ubuntu3.2
  • inetutils Ubuntu 26.04 LTS 2:2.7-2ubuntu1.1
  • inetutils Ubuntu Pro 14.04 LTS 2:1.9.2-1ubuntu0.1~esm4
  • inetutils Ubuntu Pro 16.04 LTS 2:1.9.4-1ubuntu0.1~esm6
  • inetutils Ubuntu Pro 18.04 LTS 2:1.9.4-3ubuntu0.1+esm5
  • inetutils Ubuntu Pro 20.04 LTS 2:1.9.4-11ubuntu0.2+esm4
  • inetutils Ubuntu Pro 22.04 LTS 2:2.2-2ubuntu0.2+esm1

ubuntu advisories UBUNTU-CVE-2026-32772

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • inetutils-telnet Alpine 3.24 2.8-r0

alpine advisories ALPINE-CVE-2026-32772

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
7 mo ago

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • openwall.com https://www.openwall.com/lists/oss-security/2026/03/13/1 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 3.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N
NVD 3.1 4.7 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

Affected products

  • GNU inetutils

Classification

Weakness
  • CWE-669 Incorrect Resource Transfer Between Spheres

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.