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Classic Buffer OverflowWeakness · CWE-120

CVE-2025-25526

MEDIUM · 5.1 CVSS v3.1 Published 2025-02-11
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
56/100
Remediation priority · Elevated
No privileges Zero-click

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
Buffer overflow vulnerability in Mercury MIPC552W Camera v1.0 due to the lack of length verification, which is related to the configuration of the PPTP server. Attackers who successfully exploit this vulnerability can cause the remote target device to crash or execute arbitrary commands.

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 confidence

A buffer overflow vulnerability exists in the Mercury MIPC552W Camera v1.0 firmware due to insufficient length validation when processing PPTP server configuration parameters. Attackers can send specially crafted PPTP configuration requests to trigger the overflow, potentially causing device crash or achieving arbitrary command execution on the remote device.

MitigationApply available vendor firmware updates for the MIPC552W camera. If no update is available, disable the PPTP server feature in the device configuration and implement network segmentation to restrict access to management interfaces.

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
Local
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/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 the device model
    Check the product label or access the device web interface to confirm the exact model is Mercury MIPC552W
    Affected if The device is not a Mercury MIPC552W camera
  2. Check the firmware version
    Access the device settings page or use the manufacturer's app to view the firmware version information
    Affected if The firmware version is v1.0 or falls within the affected range provided by the vendor
  3. Locate the PPTP server settings
    Navigate to the device web interface or admin panel and look for PPTP server, VPN settings, or network configuration sections
    Affected if PPTP server configuration options are present in the device interface
  4. Verify if PPTP server is enabled
    In the identified PPTP settings section, check whether the PPTP server feature is turned on or enabled
    Affected if PPTP server is currently enabled on the device
  5. Assess network exposure
    Check if the device management interface is accessible from untrusted networks or the internet by reviewing firewall rules and port exposures
    Affected if The device management interface or PPTP ports are exposed to untrusted networks

The device is affected if it is a Mercury MIPC552W running vulnerable firmware with the PPTP server feature enabled and accessible to potential attackers.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply available vendor firmware updates for the MIPC552W camera. If no update is available, disable the PPTP server feature in the device configuration and implement network segmentation to restrict access to management interfaces.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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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-2025-25526 in production — separate from our analysis above.

No notes yet

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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