by Kastro
Paper/Archive/CVE-2026-24061

CVE-2026-24061

GNU Inetutils — GNU InetUtils Argument Injection Vulnerability

KEV · due 16 FebEPSS 99%public exploitSSVC actCVSS 9.8
critical.is priorityof 100
99
CVSS 9.8 (CNA)9.8 / 10 × 3029.4In CISA KEV+3030.0EPSS percentile 99.9.999 × 2020.0Exploit: SSVC active+1010.0SSVC exploitation: active+1010.0
Description · from the CVE record

telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a "-f root" value for the USER environment variable.

Affected

ProductAffectedFixed inSource
Inetutils1.9.3 – 2.7–CNA

Scores by source

mitre (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: active · Automatable: yes · Technical impact: total

References

refopenwall.com/lists/oss-security/2026/01/20/2refopenwall.com/lists/oss-security/2026/01/20/8refgnu.org/software/inetutilsreflists.gnu.org/archive/html/bug-inetutils/2026-01/msg00004.htmlrefcodeberg.org/inetutils/inetutils/commit/fd702c02497b2f398e739e3119bed0b23dd7aa7brefcodeberg.org/inetutils/inetutils/commit/ccba9f748aa8d50a38d7748e2e60362edd6a32ccrefvicarius.io/vsociety/posts/cve-2026-24061-detection-script-remote-authentication-bypass-in-gnu-inetutils-packagerefvicarius.io/vsociety/posts/cve-2026-24061-mitigation-script-remote-authentication-bypass-in-gnu-inetutils-packagerefredteam.ae/blog/cve-2026-24061-inetutils-telnetd-root-bypassexploitopenwall.com/lists/oss-security/2026/01/20/2#:~:[email protected]%3A~%20USER='writeuplabs.greynoise.io/grimoire/2026-01-22-f-around-and-find-out-18-hours-of-unsolicited-houseguests/index.htmlrefcisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-24061refopenwall.com/lists/oss-security/2026/01/22/1reflists.debian.org/debian-lts-announce/2026/01/msg00025.htmlkevcisa.gov/known-exploited-vulnerabilities-catalog