CVE-2025-31702
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 · uneditedA vulnerability exists in certain Dahua embedded products. Third-party malicious attacker with obtained normal user credentials could exploit the vulnerability to access certain data which are restricted to admin privileges, such as system-sensitive files through specific HTTP request. This may cause tampering with admin password, leading to privilege escalation. Systems with only admin account are not affected.
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 · moderate confidenceA vulnerability in certain Dahua embedded products allows an authenticated normal user to access admin-restricted data (including system-sensitive files) through specific HTTP requests, potentially enabling password tampering and privilege escalation. The attacker first needs valid normal-user credentials to exploit this. Systems with only an admin account are unaffected.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- High
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
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.
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Determine if normal-user accounts exist on the deviceLog into the device management interface and navigate to the user account management section. Count the number of user accounts and identify whether any are designated as non-admin or 'normal' users. Alternatively, use the device API to query user privilege levels.Affected if The device has at least one account with normal-user privileges (not admin). If only admin-level accounts exist, the device is NOT affected.
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Check the installed firmware versionAccess the device web interface or use the device API to retrieve the firmware version. Common paths: System > Maintenance > Version, or query the device status endpoint. Compare the version number against any Dahua security advisories for CVE-2025-31702.Affected if The firmware version falls within the affected range stated in Dahua security advisories for this CVE, or is otherwise unpatched.
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Verify HTTP management interface is enabledConfirm that the device HTTP/HTTPS management interface is accessible from the network. Check device network settings to ensure the web interface is enabled and note the listening port.Affected if The HTTP management interface is enabled and reachable. The vulnerability is exploited via specific HTTP requests.
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Review HTTP access logs for admin-restricted resource accessExamine device logs for HTTP requests targeting admin-restricted endpoints, particularly those that return system-sensitive files or trigger configuration changes. Look for requests from normal-user sessions accessing paths typically reserved for admin privileges.Affected if Logs show HTTP requests from normal-user accounts accessing admin-restricted resources, which may indicate exploitation attempts.
The device is affected if it has at least one normal-user account AND is running a firmware version within the affected range, and the HTTP management interface is enabled and accessible.
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.
From vendor dataRestrict the number of normal-user accounts and monitor for anomalous HTTP requests targeting admin-restricted resources. Apply vendor firmware patches when released. Consider network segmentation for affected devices.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-31702 — 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-2025-31702 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
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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
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