CVE-2026-112345 Sciener CVE debrief

Who should care

Defenders responsible for smart lock systems, particularly those using TTLock Android application, should assess exposure and prioritize verification and remediation efforts. This includes reviewing current application versions, assessing potential impacts, and implementing compensating controls as needed. Security teams should also monitor for suspicious activity and plan for incident response in case of exploitation.

Why it matters

TTLock Android application before v9.8.260718 and associated smart-lock firmware contain a hardcoded static AES key vulnerability that allows an attacker within Bluetooth range to decrypt the per-pairing session key transmitted during BLE pairing, potentially leading to unauthorized access and administrative actions.

• An attacker within Bluetooth range can decrypt the per-pairing session key
• An attacker can forge authenticated BLE requests to unlock the device
• An attacker can add fingerprints or access codes without authentication
• Verification of TTLock Android application version and smart-lock firmware is required

Technical summary

TTLock Android application before v9.8.260718 and associated smart-lock firmware contain a hardcoded static AES key vulnerability. This vulnerability allows an attacker within Bluetooth range to decrypt the per-pairing session key transmitted during BLE pairing, potentially leading to unauthorized access and administrative actions. The hardcoded key is embedded in the application and firmware, making it a persistent risk until patched. Defenders should prioritize verification and remediation efforts to prevent exploitation.

Defensive priority

High

Recommended defensive actions

• Inventory and assess exposure of TTLock Android application and associated smart-lock firmware
• Verify if TTLock Android application version is 9.8.260718 or later
• Implement compensating controls to monitor and restrict Bluetooth access to smart locks
• Consider upgrading to a non-affected version of TTLock Android application
• Review and update incident response plans to address potential unauthorized access
• Conduct regular security audits to identify and remediate vulnerabilities
• Monitor for suspicious activity and implement additional security controls as needed

Evidence notes

Official CVE Program record and NIST NVD detail page confirm TTLock Android application before v9.8.260718 and associated smart-lock firmware contain a hardcoded static AES key vulnerability. Evidence is limited to public CVE and NVD records, which may not represent the full scope of affected products or potential impacts. Defenders should verify TTLock Android application version and smart-lock firmware, assess exposure, and implement compensating controls as needed.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.