CVE-2026-24423 Details.
SmarterMail - Remote Code Execution
Atlas does not check this one. Needs an outside server.
To test for this one, the site would have to contact a server outside your network and report back. Atlas does not run checks that need that, so it does not run this one.
About CVE-2026-24423. What It Means.
SmarterTools SmarterMail < build 9511 contains an unauthenticated remote code execution caused by malicious OS command execution via ConnectToHub API method, letting remote attackers execute arbitrary commands, exploit requires no authentication.
Affected Product. What Is Hit.
The record for CVE-2026-24423 does not name a vendor or product yet.
FAQ
Common Questions.
SmarterMail - Remote Code Execution. SmarterTools SmarterMail < build 9511 contains an unauthenticated remote code execution caused by malicious OS command execution via ConnectToHub API method, letting remote attackers execute arbitrary commands, exploit requires no authentication.
No. To test for this one, the site would have to contact a server outside your network and report back. Atlas does not run checks that need that, so it does not run this one. The facts about CVE-2026-24423 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
Yes. CVE-2026-24423 is on the CISA Known Exploited Vulnerabilities list, which means attackers have used it against real targets.
Update the affected software to the latest version from the vendor, or follow the vendor's advice to switch off the affected feature. Vendor links are listed on this page when they are known.
This page lists the public facts about CVE-2026-24423. Atlas does not run a check for it, so nothing here says whether a particular site is affected.