How severe is CVE-2022-28371?

CVE-2022-28371 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2022-28371 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28371?

CVE-2022-28371 primarily affects Verizon Lvskihp Indoorunit Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-28371?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-28371 published?

CVE-2022-28371 was published on 2022-07-14 and last updated on 2026-06-17.

CVE-2022-28371

CVE-2022-28371 is a high-severity vulnerability in Verizon Lvskihp Indoorunit Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Verizon Lvskihp Indoorunit Firmware
Published: 2022-07-14
Last modified: 2026-06-17

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 certificate for access control. This certificate is embedded in the firmware, and is identical across the fleet of devices. An attacker need only download this firmware and extract the private components of these certificates (from /etc/lighttpd.d/ca.pem and /etc/lighttpd.d/server.pem) to gain access. (The firmware download location is shown in a device's upgrade logs.)

Frequently asked questions

What is CVE-2022-28371?: 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 certificate for access control. This certificate is embedded in the firmware, and is identical across the fleet of devices. An attacker need only download this firmware and extract the private components of these certificates (from /etc/lighttpd.d/ca.pem and /etc/lighttpd.d/server.pem) to gain access. (The firmware download location is shown in a device's upgrade logs.)
How severe is CVE-2022-28371?: CVE-2022-28371 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2022-28371 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28371?: CVE-2022-28371 primarily affects Verizon Lvskihp Indoorunit Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-28371?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-28371 published?: CVE-2022-28371 was published on 2022-07-14 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:verizon:lvskihp_indoorunit_firmware:3.4.66.162:*:*:*:*:*:*:*
cpe:2.3:o:verizon:lvskihp_outdoorunit_firmware:3.33.101.0:*:*:*:*:*:*:*

More vulnerabilities in Verizon Lvskihp Indoorunit Firmware

CVE-2022-28373 — Critical (CVSS 9.8): Verizon 5G Home LVSKIHP InDoorUnit (IDU) 3.4.66.162 does not properly sanitize user-controlled parameters within the…
CVE-2022-28369 — Critical (CVSS 9.8): Verizon 5G Home LVSKIHP InDoorUnit (IDU) 3.4.66.162 does not validate the user-provided URL within the crtcmode…
CVE-2022-28377 — High (CVSS 7.5): On Verizon 5G Home LVSKIHP InDoorUnit (IDU) 3.4.66.162 and OutDoorUnit (ODU) 3.33.101.0 devices, the CRTC and ODU RPC…
CVE-2022-28372 — High (CVSS 7.5): On Verizon 5G Home LVSKIHP InDoorUnit (IDU) 3.4.66.162 and OutDoorUnit (ODU) 3.33.101.0 devices, the CRTC and ODU RPC…

All CVEs affecting Verizon Lvskihp Indoorunit Firmware →

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