CVE-2022-28371Public exploitNetwork attack vector

Unauthenticated RPC access via fleet-wide embedded certificates

Published Jul 14, 2022 · Updated Aug 3, 2024

Hard-coded credentials in Verizon 5G Home LVSKIHP IDU 3.4.66.162 and ODU 3.33.101.0 allow remote attackers to access RPC endpoints. The CRTC and ODU JSON-RPC listeners authenticate clients with the same certificate and private key embedded in every device firmware image. Remote attackers who obtain the firmware URL from upgrade logs can extract /etc/lighttpd.d/ca.pem and /etc/lighttpd.d/server.pem and reuse them as client credentials.

CVSS severity7.5
High
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded credentials in Verizon 5G Home LVSKIHP IDU 3.4.66.162 and ODU 3.33.101.0 allow remote attackers to access RPC endpoints. The CRTC and ODU JSON-RPC listeners authenticate clients with the same certificate and private key embedded in every device firmware image. Remote attackers who obtain the firmware URL from upgrade logs can extract /etc/lighttpd.d/ca.pem and /etc/lighttpd.d/server.pem and reuse them as client credentials.

The record

CVE
CVE-2022-28371
Published
Jul 14, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-798, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 14, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1078Valid Accounts

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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