CVE-2026-26335
Critical
Description
Calero VeraSMART versions prior to 2022 R1 use static ASP.NET/IIS machineKey values configured for the VeraSMART web application and stored in C:\\Program Files (x86)\\Veramark\\VeraSMART\\WebRoot\\web.config. An attacker who obtains these keys can craft a valid ASP.NET ViewState payload that passes integrity validation and is accepted by the application, resulting in server-side deserialization and remote code execution in the context of the IIS application.
SeverityCritical
CVSS9.8
Exploit probability—
ProductCalero Verasmart
PublishedFeb 13, 2026
First seenFeb 13, 2026
Weakness typeCWE-321CWE-321
How to fix
Update
- calero verasmart2022.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| calero verasmart | v < 2022.0, 2022.0 | 2022.0 |
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