CVE-2022-39185Network attack vector

Unauthenticated privileged access via hard-coded account

Published Jan 12, 2023 · Updated Apr 8, 2025

Use of hard-coded credentials in EXFO BV-10 Performance Endpoint Unit firmware allows remote attackers to obtain privileged access. The firmware's authentication mechanism accepts an undocumented hard-coded privileged account; the CNA does not identify the account name, credential, or service. No prior account or user interaction is required, and network access to the affected service grants privileged control of the unit.

CVSS severity9.8
Critical
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use of hard-coded credentials in EXFO BV-10 Performance Endpoint Unit firmware allows remote attackers to obtain privileged access. The firmware's authentication mechanism accepts an undocumented hard-coded privileged account; the CNA does not identify the account name, credential, or service. No prior account or user interaction is required, and network access to the affected service grants privileged control of the unit.

The record

CVE
CVE-2022-39185
Published
Jan 12, 2023
Updated
Apr 8, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-798, T1078.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2025Record 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

9.8Israel National Cyber DirectorateCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1078.001Default Accounts

Public exploit references

No public exploit references are available in this record.

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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