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Vulnerability record · CVE-2026-32772 · published 16 March 2026

CVE-2026-32772: Gnu inetutils vulnerability

Gnu · Inetutils

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

4.7 CVSS 3.1 Medium EPSS 0.27% · top 82.7% CWE-669 · CWE-669
4.7CVSS 3.1 base score
0.27%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.openwall.com/lists/oss-security/2026/03/13/1 ExploitMailing ListThird Party Advisory
https://www.openwall.com/lists/oss-security/2026/03/13/1 ExploitMailing ListThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-24061GNU Inetutils telnetd argument injection allows remote auth bypasstelnetd in GNU Inetutils through 2.7 fails to sanitize the USER environment variable, so a value such as "-f root" is passed as an argument to login …KEVEPSS 99%analysed10.0CVE-2011-4862telnetd encryption key buffer overflow allows remote code executionA buffer overflow in libtelnet/encrypt.c in telnetd affects FreeBSD 7.3 through 9.0, MIT krb5-appl 1.0.2 and earlier, Heimdal 1.5.1 and earlier, GNU …EPSS 95%analysed9.8CVE-2026-32746Gnu inetutils classic buffer overflow vulnerabilitytelnetd 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 …EPSS 2.4%7.8CVE-2026-28372Gnu inetutils inclusion from untrusted sphere vulnerabilitytelnetd in GNU inetutils through 2.7 allows privilege escalation that can be exploited by abusing systemd service credentials support added to the lo…EPSS 0.20%7.8CVE-2023-40303Gnu inetutils unchecked return value vulnerabilityGNU inetutils before 2.5 may allow privilege escalation because of unchecked return values of set*id() family functions in ftpd, rcp, rlogin, rsh, rs…EPSS 0.41%7.5CVE-2022-39028Gnu inetutils null pointer dereference vulnerabilitytelnetd in GNU Inetutils through 2.3, MIT krb5-appl through 1.0.3, and derivative works has a NULL pointer dereference via 0xff 0xf7 or 0xff 0xf8. In…EPSS 2.1%6.5CVE-2021-40491Gnu inetutils insufficient verification of data authenticity vulnerabilityThe ftp client in GNU Inetutils before 2.2 does not validate addresses returned by PASV/LSPV responses to make sure they match the server address. Th…EPSS 1.0%7.8CVE-2026-31431Linux kernel algif_aead in-place crypto operation flawThe Linux kernel's algif_aead AF_ALG AEAD interface operated in-place on buffers that come from different mappings, a flaw the fix resolves by revert…KEVEPSS 3.4%analysed

Source: NIST National Vulnerability Database (record CVE-2026-32772), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.