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...

Exploit for CVE-2026-26335

👤 Author Mohammed Idrees Banyamer Security Researcher...

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...

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...

CVE-2026-26333 Calero VeraSMART < 2022 R1 .NET Remoting Arbitrary File Read Leading to ViewState RCE

Calero VeraSMART versions prior to 2022 R1 expose an unauthenticated .NET Remoting HTTP service on TCP port 8001. The service publishes default ObjectURIs including EndeavorServer.rem and RemoteFileReceiver.rem and permits the use of SOAP and binary formatters with TypeFilterLevel set to Full. An...

CVE-2026-26333

Calero VeraSMART versions prior to 2022 R1 expose an unauthenticated .NET Remoting HTTP service on TCP port 8001. The service publishes default ObjectURIs including EndeavorServer.rem and RemoteFileReceiver.rem and permits the use of SOAP and binary formatters with TypeFilterLevel set to Full. An...

CVE-2026-26333 Calero VeraSMART < 2022 R1 .NET Remoting Arbitrary File Read Leading to ViewState RCE

Calero VeraSMART versions prior to 2022 R1 expose an unauthenticated .NET Remoting HTTP service on TCP port 8001. The service publishes default ObjectURIs including EndeavorServer.rem and RemoteFileReceiver.rem and permits the use of SOAP and binary formatters with TypeFilterLevel set to Full. An...

CVE-2026-26333

The CVE describes an unauthenticated .NET Remoting HTTP service on TCP port 8001 in VeraSMART versions prior to 2022 R1. It exposes default ObjectURIs (e.g., EndeavorServer.rem, RemoteFileReceiver.rem) and allows SOAP/binary formatters with TypeFilterLevel set to Full. An unauthenticated attacker...

CVE-2026-26335

CVE-2026-26335 affects Calero VeraSMART web applications running on IIS where VeraSMART versions prior to 2022 R1 store static machineKey values in web.config. The static keys allow an attacker to craft a valid ASP.NET ViewState payload, bypassing integrity checks and enabling server-side deseria...

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...

CVE-2026-26335 Calero VeraSMART < 2022 R1 Static IIS Machine Keys Enable ViewState RCE

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...

PT-2026-8030

Name of the Vulnerable Software and Affected Versions Calero VeraSMART versions prior to 2022 R1 Description An unauthenticated .NET Remoting HTTP service is exposed on TCP port 8001 in affected versions. The service publishes default ObjectURIs, including EndeavorServer.rem and...

Calero VeraSMART 安全漏洞

Calero VeraSMART is a telephone billing software developed by the American company Calero. Versions of Calero VeraSMART prior to 2022 R1 contained security vulnerabilities. These vulnerabilities stemmed from the use of static ASP.NET/IIS machineKey values, which could allow attackers to construct...

PT-2026-8032

Name of the Vulnerable Software and Affected Versions Calero VeraSMART versions prior to 2022 R1 Description The application uses static machineKey values configured for the VeraSMART web application and stored in 'C:Program Files x86VeramarkVeraSMARTWebRootweb.config'. An attacker obtaining thes...

UAT-8837 targets critical infrastructure sectors in North America

Cisco Talos is closely tracking UAT-8837, a threat actor we assess with medium confidence is a China-nexus advanced persistent threat APT actor based on overlaps in tactics, techniques, and procedures TTPs with those of other known China-nexus threat actors. Based on UAT-8837's TTPs and...

From LFI to RCE: Active Exploitation Detected in Gladinet and TrioFox Vulnerability

Cybersecurity company Huntress said it has observed active in-the-wild exploitation of an unpatched security flaw impacting Gladinet CentreStack and TrioFox products. The zero-day vulnerability, tracked as CVE-2025-11371 CVSS score: 6.1, is an unauthenticated local file inclusion bug that allows...

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