Calero VeraSMART prior 2022 R1 web.config hard-coded key

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.2	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Calero VeraSMART and classified as critical. This issue affects some unknown processing of the file C:\Program Files (x86)\Veramark\VeraSMART\WebRoot\web.config. This manipulation causes hard-coded key. This vulnerability appears as CVE-2026-26335. The attack may be initiated remotely. In addition, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Calero VeraSMART. Affected by this vulnerability is an unknown part of the file C:\Program Files (x86)\Veramark\VeraSMART\WebRoot\web.config. The manipulation with an unknown input leads to a hard-coded key vulnerability. The CWE definition for the vulnerability is CWE-321. The use of a hard-coded cryptographic key significantly increases the possibility that encrypted data may be recovered. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was presented by Victor A. Morales. This vulnerability is known as CVE-2026-26335 since 02/13/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1600.001 according to MITRE ATT&CK.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept.

Upgrading to version 2022 R1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (52540). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Calero

Name

VeraSMART

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Hard-coded key
CWE: CWE-321 / CWE-320
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Exploit-DB: 🔒

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: VeraSMART 2022 R1

Timelineinfo

02/13/2026 Advisory disclosed
02/13/2026 +0 days CVE reserved
02/13/2026 +0 days VulDB entry created
05/12/2026 +88 days VulDB entry last update

Sourcesinfo

Researcher: Victor A. Morales
Status: Confirmed

CVE: CVE-2026-26335 (🔒)
GCVE (CVE): GCVE-0-2026-26335
GCVE (VulDB): GCVE-100-345943
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/13/2026 23:11
Updated: 05/12/2026 12:07
Changes: 02/13/2026 23:11 (65), 02/27/2026 03:41 (11), 05/12/2026 12:07 (11)
Complete: 🔍
Cache ID: 216::103