Vulnerability Details CVE-2026-26335
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 28.8%
CVSS Severity
CVSS v3 Score 9.8
References