CVE-2026-51597
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 · uneditedMERCURY MIPC252W IP camera v1.0.5 Build 230306 Rel.79931n does not implement nonce expiration in RTSP Digest authentication. An adjacent network attacker can capture a legitimate authentication exchange and replay the nonce and response values in a new connection to bypass authentication without knowledge of the device credentials, gaining unauthorized access to the live video stream.
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 RTSP Digest authentication fails to implement nonce expiration, allowing a replay attack where an adjacent network attacker captures a valid authentication exchange and reuses the nonce/response pair to bypass authentication and access the live video stream without knowing credentials.
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
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/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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Identify the camera modelAccess the camera's web interface or check the device label to confirm the model is MERCURY MIPC252WAffected if Model is MERCURY MIPC252W and RTSP Digest authentication is in use
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Check the firmware versionLog into the camera web interface, navigate to System or Settings > Device Info, and record the firmware versionAffected if Firmware version is 1.0.5 or falls within the affected version range for this model
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Verify RTSP is enabledIn the camera settings, check under Network or Streaming settings for RTSP configuration; confirm RTSP service is turned onAffected if RTSP protocol is enabled on the device
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Check network accessibilityDetermine if the camera RTSP port (typically 554) is exposed to untrusted network segments or the internet by reviewing firewall rules, port forwards, or VLAN configurationAffected if RTSP port is reachable from adjacent networks or untrusted segments without proper access controls
The environment is likely affected if the MERCURY MIPC252W camera runs firmware v1.0.5 with RTSP enabled and is accessible from adjacent network segments where an attacker could capture and replay authentication exchanges.
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 dataApply vendor firmware update if available; otherwise implement network segmentation to restrict adjacent network access to the camera and disable RTSP when not required.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-51597 — 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-2026-51597 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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- Version or environment caveats, and links to real fixes
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