X3500 FirmwareOperating system · Senselive

CVE-2026-25720

MEDIUM · 5.4 CVSS v3.1 Published 2026-04-24
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
60/100
Remediation priority · Elevated
Remotely reachable 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
A vulnerability exists in SenseLive X3050’s web management interface due to improper session lifetime enforcement, allowing authenticated sessions to remain active for extended periods without requiring re-authentication. An attacker with access to a previously authenticated session could continue interacting with administrative functions long after legitimate user activity has ceased.

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 SenseLive X3050 web management interface has improper session lifetime enforcement, allowing authenticated sessions to remain active indefinitely without requiring re-authentication after legitimate user activity ceases. An attacker with access to a previously authenticated session (e.g., through session hijacking or shared workstation access) can continue to use administrative functions beyond the intended session duration.

MitigationImplement proper session timeout mechanisms with reasonable inactivity thresholds, enforce session expiration after a defined period, and invalidate sessions upon logout or security events.

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
X3500 FirmwareOperating system
Affected:= 1.523

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

CVSS:3.1/AV:N/AC:L/PR:L/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 firmware version
    Access the device console or admin panel and retrieve the firmware version information, typically found in System > About or Settings > Firmware
    Affected if firmware version is exactly 1.523
  2. Confirm web management interface is enabled
    Verify that the SenseLive web management interface (HTTP/HTTPS on port 80/443 or vendor-specific port) is accessible and functional
    Affected if web management interface is accessible and running
  3. Test session persistence after inactivity
    Log into the web management interface, perform a legitimate action, then wait 30+ minutes without interaction and attempt to access admin functions without re-authenticating
    Affected if session remains active and admin functions work without re-authentication after inactivity period
  4. Check session cookies or tokens for expiration
    Inspect session cookies or tokens returned upon login using browser developer tools or HTTP proxy; look for expiration attributes (Expires/Max-Age)
    Affected if session tokens have no expiration attribute or a very long/indefinite expiration time

User is affected if running firmware version 1.523 and the web management interface allows authenticated sessions to persist indefinitely without requiring re-authentication after inactivity.

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

Implement proper session timeout mechanisms with reasonable inactivity thresholds, enforce session expiration after a defined period, and invalidate sessions upon logout or security events.

Fix this in X3500 Firmware Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,130
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Scan for this in your stack

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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-2026-25720 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
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