Critical severity · published Mar 2, 2026
CVE-2026-3422
e-Excellence｜U-Office Force - Insecure Deserialization
9.8
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UF
U-Office Force · e-Excellence
through 29.50 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-3422
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-3422
Third Party Advisory
https://www.twcert.org.tw/en/cp-139-10743-9a952-2.html
Third Party Advisory
https://www.twcert.org.tw/tw/cp-132-10742-45b13-1.html
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