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CVE-2026-81531

Unauthenticated Account Information Disclosure in Multiple Omada Controllers

No known exploitation. EPSS puts it in the 52nd percentile. Fixed versions are out.

CVSS —Not scoredEPSS percentile52nd0.7% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix5 products5 fixed builds listed below
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OpenVAS · 1 check

e.g. OID 1.3.6.1.4.1.25623.1.0.139263

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Published Updated Sources: CVE.org, NVD

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • TP-Link System Inc. Omada Software ControllerAffected: < 6.3.0.45Upgrade to: 6.3.0.45Stated by: CVE record
  • TP-Link Systems Inc. OC200 V1Affected: < (UN)_V1_1.42.10 Build 20260825Upgrade to: (UN)_V1_1.42.10 Build 20260825Stated by: CVE record
  • TP Link Systems Inc. OC200 v2Affected: < (UN)_V2_2.27.10 Build 20260825Upgrade to: (UN)_V2_2.27.10 Build 20260825Stated by: CVE record
  • TP-Link Systems Inc OC200 v3Affected: < (UN)_V3_3.4.10 Build 20260825Upgrade to: (UN)_V3_3.4.10 Build 20260825Stated by: CVE record
  • TP-Link Systems Inc. OC220 v1Affected: < (UN)_V1_1.7.10 Build 20260825Upgrade to: (UN)_V1_1.7.10 Build 20260825Stated by: CVE record

Versions as the sources state them. 3 more products have version data. Full version matrix after sign-in

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

An information disclosure vulnerability has been identified in Omada Controller.  An API endpoint intended for Controller initialization remains accessible after completion and may disclose account-related information to unauthenticated remote users.  Successful exploitation may allow an attacker to remote query the affected endpoint that may facilitate user enumeration and subsequent attacks targeting administrative accounts.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS52nd
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

0.7% chance of exploitation activity in the next 30 days, which ranks it in the 52nd percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

6 events over 13 days, from the signal feeds we watch.

  1. Record updated
  2. OpenVAS check added
  3. Publishedweakness classified, att&ck mapped, record updated

Affected products

Technical detail

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

Watch the software you run.

My Stack ranks new CVEs for your products by real-world exploitation, so the next serious one reaches you without reading every advisory.

We'll flag the next CVE, public exploit or patch for OC200 V1, not every advisory.