CVE-2022-28376Public exploitNetwork attack vector

Unauthenticated admin access via derived password

Published Apr 3, 2022 · Updated Aug 3, 2024

Improper authentication in Verizon 5G Home LVSKIHP outside devices through 2022-02-15 allows remote attackers admin access via network. The CPE derives the verizon account password from the device serial number and LVSKIHP model string by hashing the concatenation and exposing predictable first and last seven-character fragments. Anyone who knows the serial number can reach the 10.0.0.1 administration site without prior credentials, gaining administrative read, configuration, and service-control capabilities.

CVSS severity8.1
High
EPSS probability1.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Verizon 5G Home LVSKIHP outside devices through 2022-02-15 allows remote attackers admin access via network. The CPE derives the verizon account password from the device serial number and LVSKIHP model string by hashing the concatenation and exposing predictable first and last seven-character fragments. Anyone who knows the serial number can reach the 10.0.0.1 administration site without prior credentials, gaining administrative read, configuration, and service-control capabilities.

The record

CVE
CVE-2022-28376
Published
Apr 3, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-287, T1078.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 3, 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

8.1NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8NVDAV:N/AC:M/Au:N/C:P/I:P/A:P

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-287Improper Authentication
T1078.001Default 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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