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Vulnerability record · CVE-2025-9291 · published 3 August 2026

CVE-2025-9291: Tp-link omada fusion 2.5g firmware improper certificate validation vulnerability

Tp Link · Omada Fusion 2.5g Firmware

A certification validation weakness exists in communication between affected Omada devices and cloud controllers. Certificate identity verification does not adequately validate that a presented certificate corresponds to the expected cloud controller hostname, which may allow certificate validation protections to be bypassed under specific conditions. Successful exploitation may allow interception or modification of communication between affected devices and cloud controllers.

7.7 CVSS 4.0 High EPSS 0.22% · top 89.2% CWE-295 · Improper certificate validation
7.7CVSS 4.0 base score
0.22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
109Affected product versions listed by NVD
3References
7 Aug 2026Last modified by NVD

Description

A certification validation weakness exists in communication between affected Omada devices and cloud controllers. Certificate identity verification does not adequately validate that a presented certificate corresponds to the expected cloud controller hostname, which may allow certificate validation protections to be bypassed under specific conditions. Successful exploitation may allow interception or modification of communication between affected devices and cloud controllers.

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

109 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.omadanetworks.com/en/download/firmware/ Product
https://support.omadanetworks.com/us/download/firmware/ Product
https://www.tp-link.com/us/support/faq/5216/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.2CVE-2025-15628Tp-link omada oc200 v3 firmware hard-coded credentials vulnerabilityAffected Omada devices rely on embedded certificates that are shared across deployments to establish trust between controllers and managed devices. A…EPSS 0.32%6.9CVE-2025-15627Tp-link omada oc200 v3 firmware vulnerabilityA cryptographic weakness exists in the Omada adoption protocol.  The protocol relies on hard-coded cryptographic keys to establish trust and protect …EPSS 0.68%6.9CVE-2025-15629Tp-link omada oc200 v3 firmware vulnerabilityA cryptographic weakness exists in the Omada adoption protocol where session encryption keys used to protect communications between controllers and m…EPSS 0.33%6.9CVE-2025-15544Tp-link omada oc200 v3 firmware vulnerabilityA cryptographic weakness exists in the Omada device adoption process.  During adoption, authentication credentials associated with site management ar…EPSS 0.34%5.8CVE-2025-15630Tp-link omada oc200 v3 firmware race condition vulnerabilityA race condition exists in the cloud-based Omada device adoption process when an attacker may be able to interact with the adoption workflow before a…EPSS 0.31%5.7CVE-2025-15631Tp-link omada fusion 2.5g firmware vulnerabilityA cryptographic weakness exists in affected Omada devices where site credentials are protected using a legacy hashing algorithm that does not provide…EPSS 0.30%9.8CVE-2026-85102Checkpoint gaia embedded improper certificate validation vulnerabilityImproper certificate trust validation during VPN negotiation in Check Point Quantum Security Gateway may allow an unauthenticated remote attacker to …KEVEPSS 0.99%5.5CVE-2023-41991Apple iOS, iPadOS and macOS certificate validation bypassApple iOS, iPadOS and macOS contain an improper certificate validation flaw (CWE-295) that lets a malicious app bypass signature validation. Apple st…KEVEPSS 13%analysed

Source: NIST National Vulnerability Database (record CVE-2025-9291), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.