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.
History

Thu, 26 Feb 2026 23:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:calero:verasmart:*:*:*:*:*:*:*:*
cpe:2.3:a:calero:verasmart:2022.0:-:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Mon, 16 Feb 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Calero
Calero verasmart
Vendors & Products Calero
Calero verasmart

Fri, 13 Feb 2026 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 13 Feb 2026 21:15:00 +0000

Type Values Removed Values Added
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.
Title Calero VeraSMART < 2022 R1 Static IIS Machine Keys Enable ViewState RCE
Weaknesses CWE-321
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-02-13T20:51:26.374Z

Updated: 2026-02-18T15:44:20.710Z

Reserved: 2026-02-13T17:28:43.052Z

Link: CVE-2026-26335

cve-icon Vulnrichment

Updated: 2026-02-13T21:26:47.285Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-13T21:16:52.927

Modified: 2026-02-26T22:45:37.080

Link: CVE-2026-26335

cve-icon Redhat

No data.