What is CVE-2026-3422?

CVE-2026-3422 is a critical-severity vulnerability in E-excellence U-office Force, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-03-02.

How severe is CVE-2026-3422?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Deserialization in E-excellence U-office Force

CVE-2026-3422

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.

Vulnerability class: Insecure Deserialization

EPSS: 0.002 (44.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

E-excellence U-office Force — versions 0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

www.twcert.org.tw/tw/cp-132-10742-45b13-1.html (third-party-advisory)
www.twcert.org.tw/en/cp-139-10743-9a952-2.html (third-party-advisory)

Frequently asked questions

What is CVE-2026-3422?: CVE-2026-3422 is a critical-severity vulnerability in E-excellence U-office Force, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-03-02.
How severe is CVE-2026-3422?: Critical severity. CVSS v3 base score is 9.8 out of 10.