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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.calero.com/	Product
https://www.vulncheck.com/advisories/calero-verasmart-2022-r1-static-iis-machine-keys-enable-viewstate-rce	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:calero:verasmart::::::::
	cpe:2.3:a:calero:verasmart:2022.0:-::::::

History

26 Feb 2026, 22:45

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8
References	~~() https://www.calero.com/ -~~	() https://www.calero.com/ - Product
References	~~() https://www.vulncheck.com/advisories/calero-verasmart-2022-r1-static-iis-machine-keys-enable-viewstate-rce -~~	() https://www.vulncheck.com/advisories/calero-verasmart-2022-r1-static-iis-machine-keys-enable-viewstate-rce - Third Party Advisory
CPE		cpe:2.3:a:calero:verasmart:2022.0:-:::::: cpe:2.3:a:calero:verasmart::::::::
First Time		Calero verasmart Calero

13 Feb 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-13 21:16

Updated : 2026-02-26 22:45

NVD link : CVE-2026-26335

Mitre link : CVE-2026-26335

CVE.ORG link : CVE-2026-26335

JSON object : View

Products Affected

calero

verasmart

CWE

CWE-321

Use of Hard-coded Cryptographic Key

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