CVE-2023-38585Network attack vector

Authenticated OS command execution via improper authentication

Published Aug 23, 2023 · Updated Aug 2, 2024

Improper authentication in CBC digital video recorders with affected firmware allows remote authenticated users to execute OS commands. The flaw affects the recorders' user-management module, but public advisories do not disclose the failed authentication operation or request path. Valid device credentials are required; successful access permits arbitrary command execution or recorder settings changes.

CVSS severity8.8
High
EPSS probability1.07%
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 CBC digital video recorders with affected firmware allows remote authenticated users to execute OS commands. The flaw affects the recorders' user-management module, but public advisories do not disclose the failed authentication operation or request path. Valid device credentials are required; successful access permits arbitrary command execution or recorder settings changes.

The record

CVE
CVE-2023-38585
Published
Aug 23, 2023
Updated
Aug 2, 2024
Vendor
CBC Co., Ltd.
Product
NR-4M, NR-8M, NR-16M series
Classifications
CWE-287, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=firmware all versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CBC Co., Ltd. · NR-4M, NR-8M, NR-16M seriesversion=firmware all versions
CBC Co., Ltd. · NR4H, NR8H, NR16H seriesversion=firmware all versions
CBC Co., Ltd. · DR-16F, DR-8F, DR-4F, DR-16H, DR-8H, DR-4H, DR-4M41 seriesversion=firmware all versions
CBC Co., Ltd. · NR-4F, NR-8F, NR-16F seriesversion=firmware all versions
CBC Co., Ltd. · DR-16M, DR-8M, DR-4M51 seriesversion=firmware all versions

Published CVSS scores

8.8JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:L/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1190Exploit Public-Facing Application

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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