CVE-2026-58123 Details.
Hermes WebUI < 0.51.788 - 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-2026-58123. What It Means.
Hermes WebUI < 0.51.788 contains an unauthenticated remote code execution caused by improper access control in embedded terminal API endpoints, letting remote attackers execute arbitrary shell commands without credentials.
Affected Product. What Is Hit.
- Vendor
- nesquena
- Product
- Nesquena Hermes WebUI
References. Where To Read More.
FAQ
Common Questions.
Hermes WebUI < 0.51.788 - Remote Code Execution. Hermes WebUI < 0.51.788 contains an unauthenticated remote code execution caused by improper access control in embedded terminal API endpoints, letting remote attackers execute arbitrary shell commands without credentials.
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-2026-58123 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
CVE-2026-58123 is not on the CISA Known Exploited Vulnerabilities list at the time of writing, but it is still worth fixing.
Update Nesquena Hermes WebUI 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-2026-58123. Atlas does not run a check for it, so nothing here says whether a particular site is affected.