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ControlFLASH CVE-2026-12663

| EUVDEUVD-2026-69136 HIGH
Missing Authentication for Critical Function (CWE-306)
2026-09-01 Rockwell GHSA-vcp2-c9vw-q6x9
7.0
CVSS 4.0 · Vendor: Rockwell
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Severity by source

Vendor (Rockwell) PRIMARY
7.0 HIGH
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
7.3 HIGH

Local attack vector with low privilege confirmed; user interaction required (victim must launch application); scope unchanged as execution stays at user's own permission level.

3.1 AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (Rockwell).

CVSS VectorVendor: Rockwell

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
P
Scope
X

Lifecycle Timeline

2
Analysis Generated
Sep 01, 2026 - 14:08 vuln.today
CVE Published
Sep 01, 2026 - 13:30 cve.org
HIGH 7.0

DescriptionCVE.org

A security issue exists within ControlFLASH™, where the installer grants write permissions to the "Everyone" group on a product installation directory. This could allow arbitrary code execution, resulting in an attacker being given the ability to run any commands or code of the attacker's choice on a target machine at the logged-in user's permission level.

AnalysisAI

Insecure installation directory permissions in Rockwell Automation ControlFLASH™ expose any local user account to arbitrary code execution by allowing write access to the product's installation folder for the Windows 'Everyone' group. An attacker with low-privileged local access can plant a malicious binary or DLL in the installation directory, which then executes at the permission level of whichever user subsequently launches ControlFLASH - potentially a privileged operator in an OT environment. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation The attacker must have an active local user account on the target Windows machine - confirmed by CVSS PR:L (low privilege required) and AV:L (local attack vector). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N, score 7.0) accurately captures the threat profile: attack is local, complexity is low once access is obtained, exploitation requires a low-privileged account, and a user interaction step (the victim launching ControlFLASH) is required. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Consult the Rockwell Automation security advisory SD1793 (https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1793.html) for the vendor-recommended patch or updated installer. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory all systems running ControlFLASH and document current versions across OT and IT environments. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-12663 vulnerability details – vuln.today

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