CVE-2026-51598
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 · uneditedAn input validation vulnerability in the RTSP service of MERCURY MIPC252W IP Camera v1.0.5 Build 230306 Rel.79931n) allows an unauthenticated, network-adjacent attacker to cause a denial of service via a crafted DESCRIBE request with a malformed URL in the request line.
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 confidenceThe MERCURY MIPC252W IP Camera v1.0.5 contains an input validation flaw in its RTSP (Real Time Streaming Protocol) service. An unauthenticated, network-adjacent attacker can send a crafted DESCRIBE request containing a malformed URL in the request line, which triggers a denial of service condition due to improper validation of the URL parameter.
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
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.
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Identify the device modelAccess the camera's web interface or check the device label/metadata to confirm the model is MERCURY MIPC252WAffected if The device is not a MERCURY MIPC252W model
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Check the firmware versionNavigate to the camera's web interface settings, typically under System or About section, to view the firmware version. Alternatively, check the device documentation or login to the device via SSH/Telnet if enabled and run 'version' or similar command.Affected if The firmware version is 1.0.5 or falls within the affected range without being patched
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Verify RTSP service is enabledCheck the camera's web interface under Network or Streaming settings to confirm RTSP protocol is enabled. Common RTSP ports are 554, 8554, or 10554.Affected if RTSP service is enabled and accessible on the device
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Confirm network exposure of RTSP portUse a network scanner or run 'netstat -an' on a local machine to check if RTSP ports (554, 8554, etc.) are listening on WAN interface. Check router/firewall port forwarding rules to see if RTSP ports are exposed to external networks.Affected if RTSP service is exposed to untrusted network segments or the internet without firewall restrictions
A user is affected if they have a MERCURY MIPC252W camera running firmware v1.0.5 with RTSP service enabled and accessible to network-adjacent attackers.
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 dataPrimary mitigation is to check for and apply vendor firmware updates. If no update is available, restrict network access to the RTSP service via firewall rules or network segmentation to prevent unauthorized attackers from reaching the device.
- Consultation3.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,304.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-51598 — 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-2026-51598 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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- 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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