CVE-2026-3422: e-Excellence｜U-Office Force - Insecure Deserialization

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-02 · updated 2026-06-17
Weakness: CWE-502

Description

U-Office Force developed by e-Excellence has a Insecure Deserialization vulnerability, allowing unauthenticated remote attackers to execute arbitrary code on the server by sending maliciously crafted serialized content.

Affected products

e-Excellence U-Office Force: before 29.50; 29.50 — fixed in 29.50

How to fix

Upgrade to a fixed version: e-Excellence U-Office Force 29.50. Check the vendor advisory for mitigations.

References

https://www.twcert.org.tw/en/cp-139-10743-9a952-2.html
https://www.twcert.org.tw/tw/cp-132-10742-45b13-1.html

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