Is CVE-2026-22559 actively exploited?

No active exploitation of CVE-2026-22559 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-22559 be exploited remotely?

Yes. CVE-2026-22559 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-22559?

CVE-2026-22559 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2026-22559

Published: March 24, 2026· Updated: Mar 25, 2026

8.8

CVSS v3.1

EPSS:0.07%probability of exploitation in 30 daysPercentile:21.1th

Official Description

An Improper Input Validation vulnerability in UniFi Network Server may allow unauthorized access to an account if the account owner is socially engineered into clicking a malicious link.

Affected Products:

UniFi Network Server (Version 10.1.85 and earlier)

Mitigation:

Update UniFi Network Server to Version 10.1.89 or later.

NVD Source

Technical Analysis

CVE-2026-22559 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.