CyberSecBulletin
CVE-2025-15629NVD status: Analyzed

Omada Gateways: Insufficient Entropy

Published Updated By the CyberSecBulletin desk

CVE-2025-15629 is a high-severity insufficient entropy vulnerability in Omada Gateways from TP-Link, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Omada Gateways versions: 0. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.33% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of Omada Gateways you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on tp-link.com for workarounds and exact fixed builds.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
TP-LinkOmada Gateways0Not stated
TP-LinkOmada Switches0Not stated
TP-LinkOmada Access Points0Not stated
TP-LinkOmada Controllers0Not stated
TP-LinkOmada Oc200 V3 FirmwareNot specified in the recordNot stated
TP-LinkOmada Oc300 FirmwareNot specified in the recordNot stated
TP-LinkOmada Oc400 FirmwareNot specified in the recordNot stated
TP-LinkOmada Fusion 2.5g FirmwareNot specified in the recordNot stated
TP-LinkOmada Er707-m2 FirmwareNot specified in the recordNot stated
TP-LinkOmada Er7206 FirmwareNot specified in the recordNot stated
TP-LinkOmada Er706w FirmwareNot specified in the recordNot stated
TP-LinkOmada Er8411 FirmwareNot specified in the recordNot stated
TP-LinkOmada Er605 FirmwareNot specified in the recordNot stated
TP-LinkOmada Er7412-m2 FirmwareNot specified in the recordNot stated
TP-LinkOmada Er706w-4g FirmwareNot specified in the recordNot stated
TP-LinkOmada Er703wp-4g-outdoor FirmwareNot specified in the recordNot stated
TP-LinkOmada Er706wp-4g FirmwareNot specified in the recordNot stated
TP-LinkOmada S7500-24y4c FirmwareNot specified in the recordNot stated
TP-LinkOmada S7500-26xf6y FirmwareNot specified in the recordNot stated
TP-LinkOmada S6500-48mpp6y FirmwareNot specified in the recordNot stated
TP-LinkOmada S6500-24mpp4y FirmwareNot specified in the recordNot stated
TP-LinkOmada S6500-48gp6xf FirmwareNot specified in the recordNot stated
TP-LinkOmada S6500-48g6xf FirmwareNot specified in the recordNot stated
TP-LinkOmada S6500-24gp4xf FirmwareNot specified in the recordNot stated
TP-LinkOmada S6500-24g4xf FirmwareNot specified in the recordNot stated

Version data comes from the organisation that assigned the CVE; 35 further products are omitted here. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
NoneAvailability is not affected.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 4.06.9MediumCNA
CVSS 3.17.5HighNVD

Official description

A cryptographic weakness exists in the Omada adoption protocol where session encryption keys used to protect communications between controllers and managed devices may be predictable due to insufficient entropy in session key generation. An attacker who successfully intercepts adoption-related communications may be able to recover session encryption keys and decrypt affected communications.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Insufficient Entropy

The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.

How developers prevent this class of flaw

  • Determine the necessary entropy to adequately provide for randomness and predictability. This can be achieved by increasing the number of bits of objects such as keys and seeds.

More Insufficient Entropy vulnerabilities (CWE-331)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Omada Gateways

All Omada Gateways vulnerabilities

Recent Insufficient Entropy vulnerabilities

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