CVE-2023-38585
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedImproper authentication vulnerability in the CBC products allows a remote authenticated attacker to execute an arbitrary OS command on the device or alter its settings. As for the affected products/versions, see the detailed information provided by the vendor. Note that NR4H, NR8H, NR16H series and DR-16F, DR-8F, DR-4F, DR-16H, DR-8H, DR-4H, DR-4M41 series are no longer supported, therefore updates for those products are not provided.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceImproper authentication vulnerability in CBC network video recorder (NVR) and digital video recorder (DVR) products allows a remote authenticated attacker to execute arbitrary OS commands or alter device settings. This appears to be an authentication bypass or insufficient authentication control that enables privilege escalation to command execution level.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE dataall versionsall versionsall versionsall versionsall versionsall versionsall versionsall versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Identify the device modelAccess the device web interface or check the physical device label to determine if the model is one of the following: Nr4h, Nr8h, Nr16h, Dr 16f42a, Dr 16f45at, Dr 8f42a, Dr 8f45at, or Dr 4fx1Affected if The device is any of the listed CBC NVR or DVR models
-
Check the installed firmware versionLog into the device web interface, navigate to System or About section, and record the firmware version stringAffected if The firmware version corresponds to any of the listed affected product lines (all versions are vulnerable)
-
Verify remote management is enabledCheck the device network settings for remote access, web server access, or mobile app connectivity features. Look for settings such as 'Remote Access', 'Cloud Service', 'DDNS', or 'P2P' that enable external connectivityAffected if Remote management or cloud/remote access features are enabled on the device
-
Assess network exposureDetermine if the device management interface (HTTP/HTTPS ports typically 80/443) is directly accessible from the internet or from untrusted network segments. Check router port forwarding rules and firewall policiesAffected if The device is reachable from external networks or untrusted segments without VPN or firewall controls
-
Review administrative accountsExamine the device user accounts list in the management interface for any unauthorized or unexpected administrator accounts that may indicate exploitationAffected if There are unknown administrator accounts present on the device
The defender is affected if they are running any of the listed CBC NVR/DVR models with remote access or network management features enabled and the device is accessible beyond a trusted network segment.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedApply vendor-provided firmware updates for supported product lines. For end-of-life series (NR4H/NR8H/NR16H and DR-xF/DR-xH series), replace with supported hardware or implement strict network segmentation to limit exposure.
- This vulnerability has no available fix as the affected products (NR4H, NR8H, NR16H, DR-16F, DR-8F, DR-4F, DR-16H, DR-8H, DR-4H, DR-4M41 series) are end-of-life and no longer supported by the vendor (CBC/Ganz Security).
- Isolate affected devices on a restricted network segment to limit exposure to remote attackers.
- Implement strict firewall rules or access control lists to limit management access to trusted IP addresses only.
- If possible, replace end-of-life devices with currently supported models from CBC/Ganz Security or alternative vendors.
- Monitor device logs for signs of unauthorized access or anomalous behavior.
- Consider implementing network authentication mechanisms (VPN, 802.1X) as an additional layer of security.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,888.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-38585 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2023-38585 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data