Bug 2567466 (CVE-2026-122124)

Summary: CVE-2026-122124 UVC40: Yealink UVC40: Privilege escalation via physical USB access
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Yealink UVC40. An attacker with physical access to the device can exploit sensitive configuration data through the USB (Universal Serial Bus) interface to obtain root-level administrative privileges. This issue also allows the attacker to extract stored Wi-Fi network credentials and conduct unauthorized audio and video eavesdropping without triggering visual alerts on the device.
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Description OSIDB Bzimport 2026-11-05 22:00:10 UTC
On Yealink UVC40 E2 devices before 319.410.0.71, an attacker with short-term physical access can steal Wi‑Fi credentials via the USB interface. Sensitive data within the firmware configuration can be abused to gain root privileges on the device. Within Wi‑Fi coverage, the attacker may perform audio and video eavesdropping with no LED alert from the device.