What’s Vulnerable › Vulnerabilities

CVE-2022-28377

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-07-14 · updated 2026-06-17
• Weakness: CWE-521

Description

On Verizon 5G Home LVSKIHP InDoorUnit (IDU) 3.4.66.162 and OutDoorUnit (ODU) 3.33.101.0 devices, the CRTC and ODU RPC endpoints rely on a static account username/password for access control. This password can be generated via a binary included in the firmware, after ascertaining the MAC address of the IDU's base Ethernet interface, and adding the string DEVICE_MANUFACTURER='Wistron_NeWeb_Corp.' to /etc/device_info to replicate the host environment. This occurs in /etc/init.d/wnc_factoryssidkeypwd (IDU).

Affected products

• Verizon Lvskihp Indoorunit Firmware: 3.4.66.162
• Verizon Lvskihp Outdoorunit Firmware: 3.33.101.0

References

• https://github.com/JousterL/SecWriteups/blob/main/Verizon%20LVSKIHP%205G%20Modem/readme.md
• https://www.verizon.com/info/reportsecurityvulnerability/
• https://github.com/JousterL/SecWriteups/blob/main/Verizon%20LVSKIHP%205G%20Modem/readme.md
• https://www.verizon.com/info/reportsecurityvulnerability/

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