Johnson Controls ADVMS: Use of hard-coded cryptographic key
Summary
Johnson Controls ADVMS (American Dynamics Video Management System) before version 3.10 contains a hard-coded cryptographic key. A local attacker with low privileges can read this sensitive constant from the executable. The impact depends on what the key protects, which is not disclosed.
Affected
- Johnson Controls ADVMS (American Dynamics VMS) before 3.10
- Advisory: JCI-PSA-2026-17
Fixed in
- Upgrade to version 3.10 or later (target version from the CVE record; not yet confirmed by the vendor advisory)
Workaround
- Restrict local access to the ADVMS executable and restrict its communication ports from untrusted networks (third-party recommendation, not confirmed by the vendor)
- Run ADVMS with least privilege and do not use administrator rights
Exploitation
- No evidence of exploitation in the wild found
- Not listed in CISA KEV according to a third-party tracker
- No public proof-of-concept found
- CISA SSVC: exploitation none, automatable no, technical impact total
- EPSS 0.00096
Our recommendation
- Inventory all ADVMS installations and record their versions
- Ask Johnson Controls to confirm the fixed version and the full guidance in JCI-PSA-2026-17
- Upgrade to 3.10 or later once confirmed; until then, restrict local access and network reach to ADVMS hosts
- Limit logon rights on ADVMS hosts and run the application with least privilege
- Monitor the vendor advisory page for updates
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Johnson Controls Product Security Advisories www.johnsoncontrols.com
- VulDB CVE-2026-34499 vuldb.com
- OpenCVE CVE-2026-34499 app.opencve.io
- Vulners CVE-2026-34499 vulners.com
- AD VMS hardening guide www.johnsoncontrols.com
- American Dynamics Video Management Systems membercenter.americandynamics.net
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 11:15.
Original description (NVD)
Use of hard-coded cryptographic key vulnerability in Johnson Controls ADVMS allows Read Sensitive Constants Within an Executable. This issue affects ADVMS: before 3.10.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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