by Kastro
Paper/Archive/CVE-2026-129124

CVE-2026-129124

OpenKermit C-Kermit — C-Kermit before 11.1.515 OS Command Injection via REMOTE WHO and REMOTE SPACE

CVSS 9.2
critical.is priorityof 100
28
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0No EPSS score.000 × 200.0No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

C-Kermit before 11.1.515 contains an OS command injection vulnerability that allows remote clients to execute shell commands by supplying unquoted arguments to REMOTE WHO or REMOTE SPACE. Attackers can append shell metacharacters to arguments passed through WHOCMD or SPACM2 to syscmd(), executing commands on the server host even when DISABLE HOST is set.

Affected

ProductAffectedFixed inSource
C-Kermit< 11.1.51511.1.515CNA

Scores by source

VulnCheck (CNA)9.2CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
VulnCheck (CNA)8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

advisorygithub.com/OpenKermit/ckermit/security/advisories/GHSA-c5px-7h4c-gj8ppatchgithub.com/OpenKermit/ckermit/commit/29c4bfbe12d685f93668350c24291e562029ff57refgithub.com/OpenKermit/ckermit/releases/tag/v11.1.515writeupgithub.com/OpenKermit/ckermit/blob/v11.0.514/ckcpro.w#L1423writeupvulncheck.com/advisories/c-kermit-before-11.1.515-os-command-injection-via-remote-who-and-remote-space