CVE-2026-129124

CVSS 9.2 (critical) · published 2026-11-13

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.

Weakness: CWE-78

Source: NVD CVE-2026-129124

References

• https://github.com/OpenKermit/ckermit/blob/v11.0.514/ckcpro.w#L1423
• https://github.com/OpenKermit/ckermit/commit/29c4bfbe12d685f93668350c24291e562029ff57
• https://github.com/OpenKermit/ckermit/releases/tag/v11.1.515
• https://github.com/OpenKermit/ckermit/security/advisories/GHSA-c5px-7h4c-gj8p
• https://www.vulncheck.com/advisories/c-kermit-before-11.1.515-os-command-injection-via-remote-who-and-remote-space

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