Cyber Resilience

CVE-2026-3422

CriticalRCE

Published: 02 March 2026

Published
02 March 2026
Modified
09 March 2026
KEV Added
—
Patch
—
CVSS Score v4 9.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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:X/V:X/RE:X/U:X
EPSS Score 0.0076 50.6th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-3422 is a critical-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Edetw U-Office Force. Its CVSS base score is 9.3 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 49.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2026-3422 is an insecure deserialization vulnerability (CWE-502) affecting U-Office Force, a software product developed by e-Excellence. Published on 2026-03-02, it carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). The issue enables unauthenticated remote attackers to execute arbitrary code on the server through the transmission of maliciously crafted serialized content.

Unauthenticated attackers can exploit this vulnerability remotely over the network with low attack complexity, requiring no privileges, user interaction, or scope changes. Successful exploitation grants high-impact access, compromising confidentiality, integrity, and availability by allowing arbitrary code execution on the targeted server.

Advisories from TWCERT/CC provide further details on this vulnerability, available at https://www.twcert.org.tw/en/cp-139-10743-9a952-2.html and https://www.twcert.org.tw/tw/cp-132-10742-45b13-1.html.

OWASP Top 10 for Web (2025)

A08:2025 Software or Data Integrity Failures

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-502

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Insecure deserialization vulnerability enables unauthenticated remote attackers to execute arbitrary code on a public-facing server application, directly facilitating T1190: Exploit Public-Facing Application.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2025-2395Same product: Edetw U-Office Force
CVE-2025-2396Same product: Edetw U-Office Force
CVE-2025-12865Same product: Edetw U-Office Force
CVE-2025-12864Same product: Edetw U-Office Force
CVE-2025-62368Shared CWE-502
CVE-2025-68903Shared CWE-502
CVE-2025-67911Shared CWE-502
CVE-2025-54014Shared CWE-502
CVE-2026-22505Shared CWE-502
CVE-2025-53078Shared CWE-502

Affected Assets

edetw
u-office force
29.50 · ≤ 29.50

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Timely flaw remediation directly patches the insecure deserialization vulnerability, preventing arbitrary code execution from malicious serialized content.

SI-10 Information Input Validation good match
prevent

Information input validation rejects or sanitizes maliciously crafted serialized content before deserialization, blocking the root cause of the vulnerability.

SI-16 Memory Protection partial match
prevent

Memory protection mechanisms like DEP and ASLR mitigate arbitrary code execution resulting from successful deserialization exploits.

References