Johnson Controls TL280 Hardcoded Credentials and Weak Cryptography Vulnerability
First seen Aug 7, 2026 · Updated Aug 7, 2026 · CVSS 4.1
Johnson Controls TL280 camera devices running firmware versions below 5.63 contain a vulnerability involving use of a broken or risky cryptographic algorithm, tracked as CVE-2026-27871, which stems from hardcoded credentials embedded in the firmware. Successful exploitation could allow an attacker to access sensitive information on the device, though the attack requires high complexity and privileges. Johnson Controls has released firmware 5.63 to remediate the issue and recommends network segmentation and credential rotation as mitigations.
Technical Analysis
CVE-2026-27871 involves hardcoded credentials (CWE-327: Use of a Broken or Risky Cryptographic Algorithm) embedded directly in the TL280 firmware source code, potentially allowing unauthorized access to sensitive device information. The vulnerability carries a CVSS v3.1 score of 4.1 (Medium) with a vector of AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L, indicating network-based attack vector but high attack complexity and required privileges; CVSS v4.0 scoring rates it lower at 2.1 (Low). No public exploitation has been reported. This is an OT/ICS device vulnerability affecting physical security camera infrastructure across Critical Manufacturing, Commercial Facilities, Government, Transportation, and Energy sectors, with no direct code-execution or data-exfiltration path onto typical enterprise IT or AI/LLM systems; there is no plausible direct impact on AI agent frameworks, RAG pipelines, or LLM tool-use environments given this is an isolated camera firmware flaw.
Affected Systems
Johnson Controls Inc. TL280 camera devices running firmware versions prior to 5.63
Indicators of Compromise
- No specific IOCs provided; this is a firmware vulnerability advisory rather than an active exploitation campaign
Remediation Steps
- 1
Apply Firmware Update
Update affected TL280 devices to firmware version 5.63 or later as provided by Johnson Controls.
- 2
Network Segmentation
Restrict network access to affected cameras to trusted management VLANs only; do not expose devices directly to the internet or untrusted network segments.
- 3
Monitor Access Logs
Monitor device access logs for anomalous authentication activity that may indicate exploitation attempts.
- 4
Rotate Credentials
Rotate any shared or downstream credentials that may have been derived from or associated with the hardcoded values found in the firmware.
- 5
Isolate ICS/SCADA Networks
Implement network segmentation and place ICS/SCADA devices behind firewalls, isolated from business networks.
- 6
Secure Remote Access
When remote access is required, use up-to-date VPN solutions rather than direct exposure of devices.
- 7
Firmware Integrity Checks
Conduct regular firmware integrity checks to detect unauthorized modifications to device firmware.
- 8
Review Vendor Advisory
Consult Johnson Controls Product Security Advisory JCI-PSA-2026-08 for detailed mitigation instructions.
CVE / Advisory IDs
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