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Mallory
Critical

SQL Injection in Johnson Controls Metasys SQL Express Deployments

IdentifiersCVE-2025-26385CWE-77· Improper Neutralization of Special…

CVE-2025-26385 is a maximum-severity vulnerability affecting multiple Johnson Controls Metasys components when Microsoft SQL Express is deployed as part of the installation. The issue is described by the vendor as improper neutralization of special elements used in a command, mapped to CWE-77, and the supporting advisories characterize the practical outcome as SQL injection leading to remote SQL execution. Affected products include Metasys Application and Data Server (ADS) installed with SQL Express in Metasys 14.1 and prior, Extended Application and Data Server (ADX) installed with SQL Express in Metasys 14.1, LCS8500 and NAE8500 installed with SQL Express in Metasys releases 12.0 through 14.1, System Configuration Tool (SCT) 17.1 and prior when installed with SQL Express, and Controller Configuration Tool (CCT) 17.0 and prior when installed with SQL Express. Successful exploitation allows an unauthenticated remote attacker to execute arbitrary SQL commands against the backend database.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can provide unauthenticated remote SQL execution against the affected Metasys backend database. This can enable attackers to read, modify, or delete data, including potentially sensitive operational and configuration data. In the building automation context described in the supporting content, this could result in exfiltration of sensitive data, destruction or alteration of historical records, manipulation of system data that influences physical building environments, and broader operational disruption of affected Metasys deployments. The advisory material assigns the issue a CVSS v3 score of 10.0, reflecting critical impact.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, close inbound TCP port 1433 to reduce exposure to SQL Server traffic. Isolate control system networks from the internet, place them behind firewalls, and separate them from business networks. Ensure Metasys installations are on segmented networks and not exposed to untrusted networks. Follow the Metasys Release 14 Hardening Guide. Where remote access is required, use VPNs that are fully patched and ensure the security of connected endpoints. For legacy systems that cannot be patched promptly, use network segmentation and, where operationally feasible, air-gapping.

Remediation

Patch, then assume compromise.

Apply the Johnson Controls Metasys patch for GIV-165989 from the Johnson Controls License Portal. Organizations should update affected ADS, ADX, LCS8500, NAE8500, SCT, and CCT deployments that include SQL Express, and prioritize systems in exposed or high-impact environments. Follow Johnson Controls product security advisories and associated CISA ICS guidance to ensure all affected versions are remediated.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Johnson ControlsController Configuration Tool (Cct)application
Johnson ControlsLcs8500hardware
Johnson ControlsMetasys Application And Data Server (Ads)application
Johnson ControlsMetasys Extended Application And Data Server (Adx)application
Johnson ControlsNae8500hardware
Johnson ControlsSystem Configuration Tool (Sct)application

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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity5

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