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CVE-2026-24423

Critical · CVSS 9.8EPSS 87.7%CISA KEVCWE-306 · Missing Authentication for Critical Function

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

SmarterTools SmarterMail versions prior to build 9511 contain an unauthenticated remote code execution vulnerability in the ConnectToHub API method. The attacker could point the SmarterMail to the malicious HTTP server, which serves the malicious OS command. This command will be executed by the vulnerable application.

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Community real-world severity: Critical (Critical 2) — CVSS base score 9.8

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    Same weaknessCWE-306 · Missing Authentication for Critical Function.