CVE-2026-32772: telnet in GNU inetutils through 2.7 allows servers to read arbitrary environment variables from clients via NE

Q: How do I fix CVE-2026-32772?

inetutils: upgrade to newer than 2.7. Exact commands for each OS are on this page.

Q: Is CVE-2026-32772 being exploited?

CVE-2026-32772 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-32772 affect?

CVE-2026-32772 affects inetutils. Severity is low (CVSS 3.4). telnet in GNU inetutils through 2.7 allows servers to read arbitrary environment variables from clients via NEW_ENVIRON SEND USERVAR.

Q: How urgent is CVE-2026-32772?

Priority 19/100. Public exploit reference

Routine

LOW 3.4UPGRADE

CVE-2026-32772 is a low-severity flaw (CVSS 3.4) affecting inetutils. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	3.4 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 91%)
CISA exploited list	No
Weakness	CWE-669
Published	2026-03-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: gnu

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-16 14:19 UTCPublished CVE record published
2026-06-17 10:36 UTCUpdated Record last modified

gnu inetutils UPGRADE

Affected: <= 2.7

Fixed in: newer than 2.7

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy inetutils || rpm -q inetutils || inetutils --version

2. UPGRADE to newer than 2.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade inetutils

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade inetutils

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-32772?

inetutils: upgrade to newer than 2.7. Exact commands for each OS are on this page.

Is CVE-2026-32772 being exploited?

CVE-2026-32772 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-32772 affect?

CVE-2026-32772 affects inetutils. Severity is low (CVSS 3.4). telnet in GNU inetutils through 2.7 allows servers to read arbitrary environment variables from clients via NEW_ENVIRON SEND USERVAR.

How urgent is CVE-2026-32772?

Priority 19/100. Public exploit reference

Related CVEs

CVE-2026-24061 CRITICAL 9.8 EXPLOITED UPGRADE MITIGATE GNU InetUtils Argument Injection Vulnerability
CVE-2026-32746 CRITICAL 9.8 UPGRADE telnetd in GNU inetutils through 2.7 allows an out-of-bounds write in the LINEMODE SLC (Set Local Characters)
CVE-2026-28372 HIGH 7.4 UPGRADE telnetd in GNU inetutils through 2.7 allows privilege escalation that can be exploited by abusing systemd serv
CVE-2023-40303 HIGH 7.8 UPGRADE GNU inetutils before 2.5 may allow privilege escalation because of unchecked return values of set*id() family
CVE-2022-39028 HIGH 7.5 UPGRADE UPGRADE telnetd in GNU Inetutils through 2.3, MIT krb5-appl through 1.0.3, and derivative works has a NULL pointer der

References

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