Actively exploited in the wild. This CVE is on the CISA Known Exploited Vulnerabilities list — treat remediation as urgent. Federal remediation due by 26 Aug 2025.
Dcs 4603 FirmwareOperating system · Dlink

CVE-2020-25078

HIGH · 7.5 CVSS v3.1 Published 2020-09-02
Fix available
A fix is available. Upgrade to 1.03.02 / 1.03.04 or later.
See remediation →
100/100
Remediation priority · Urgent
In the wild High EPSS Remotely reachable No privileges Zero-click Patch available

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 · unedited
An issue was discovered on D-Link DCS-2530L before 1.06.01 Hotfix and DCS-2670L through 2.02 devices. The unauthenticated /config/getuser endpoint allows for remote administrator password disclosure.

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 confidence

The D-Link DCS-2530L and DCS-2670L camera devices contain an unauthenticated API endpoint at /config/getuser that returns administrator credentials in plaintext, allowing remote attackers to obtain full administrative access without any authentication.

MitigationApply vendor-supplied firmware updates (1.06.01 Hotfix for DCS-2530L, and appropriate patch for DCS-2670L). If patches are unavailable, isolate affected devices on a restricted network segment or replace with supported hardware.

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 data
Dcs 4603 FirmwareOperating system
Affected:< 1.04.02
Dcs 4622 FirmwareOperating system
Affected:< 2.01.10
Dcs 4701e FirmwareOperating system
Affected:< 2.03.01
Dcs 4703e FirmwareOperating system
Affected:< 1.03.04
Dcs 4705e FirmwareOperating system
Affected:< 1.03.02
Dcs 4802e FirmwareOperating system
Affected:< 2.01.01
Dcs P703 FirmwareOperating system
Affected:all versions
Dcs 2530l FirmwareOperating system
Affected:<= 1.05.05

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
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify camera model
    Access the device web interface or check the device label to confirm the exact model number (e.g., DCS-2530L, DCS-2670L, DCS-4603, DCS-4622, DCS-4701e, DCS-4703e, DCS-4705e, DCS-4802e, or DCS-P703)
    Affected if The device is one of the listed affected models
  2. Check firmware version
    Log into the device web interface and navigate to the System or Settings section to view the firmware version, or use the device's API or telnet/ssh if available to query the firmware version
    Affected if The firmware version falls below the threshold for your model (DCS-2530L: >1.05.05, DCS-P703: any version, or other models as listed in the affected ranges)
  3. Test vulnerable endpoint accessibility
    Send an HTTP GET request to http://<device_ip>/config/getuser without providing any authentication credentials or cookies
    Affected if The endpoint responds with HTTP 200 and returns data without requiring authentication
  4. Verify credential exposure
    Examine the response from /config/getuser endpoint and check if it contains plaintext username and password fields, particularly administrator credentials
    Affected if The response includes plaintext administrative username and password values

You are affected if your device is a D-Link DCS model listed in the CVE and the /config/getuser endpoint returns plaintext admin credentials without requiring any authentication.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 1.03.02 / 1.03.04 / 1.04.02 or later
Fixed in 1.03.021.03.041.04.02
Interim mitigation

Apply vendor-supplied firmware updates (1.06.01 Hotfix for DCS-2530L, and appropriate patch for DCS-2670L). If patches are unavailable, isolate affected devices on a restricted network segment or replace with supported hardware.

Recommended fix High confidence

DCS 4603: firmware 1.04.02 or higher | DCS 4622: firmware 2.01.10 or higher | DCS 4701e: firmware 2.03.01 or higher | DCS 4703e: firmware 1.03.04 or higher | DCS 4705e: firmware 1.03.02 or higher | DCS 4802e: firmware 2.01.01 or higher | DCS 2530L: firmware 1.06.01 Hotfix or higher | DCS P703: no fi

  1. 1. Identify the exact D-Link DCS camera model(s) in your environment from the affected list: DCS 4603, DCS 4622, DCS 4701e, DCS 4703e, DCS 4705e, DCS 4802e, DCS P703, or DCS 2530L
  2. 2. Check the current firmware version of each camera by accessing the web interface or using the manufacturer's discovery tool
  3. 3. For each affected camera, download the corresponding fixed firmware from D-Link's official support site (support.dlink.com)
  4. 4. Access each camera's web interface as administrator and navigate to the firmware upgrade or maintenance section
  5. 5. Upload and apply the appropriate fixed firmware version for your model
  6. 6. After upgrade, verify the firmware version and confirm the /config/getuser endpoint now requires authentication
  7. 7. For DCS P703 (no fix available), consider network isolation, restricting access to trusted IPs via firewall, or replacing the device
Caveat Firmware upgrades may reset configuration; backup settings before upgrade. Some legacy features may not function after firmware update.

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Dcs 4603 Firmware Exploited in the wild — priority engagement
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  • Implementation8.0 h
  • Testing3.0 h
  • Review / QA2.0 h
17.0 hours of engineering $3,050
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-25078 in production — separate from our analysis above.

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What this is

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.

What belongs here
  • 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