CVE-2026-3422 in U-Office Force
Summary
by MITRE • 03/02/2026
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.
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Analysis
by VulDB Data Team • 03/03/2026
The vulnerability identified as CVE-2026-3422 affects U-Office Force, a product developed by e-Excellence, and represents a critical insecure deserialization flaw that exposes the system to remote code execution attacks. This vulnerability resides within the application's handling of serialized data structures, which are commonly used for data transmission and storage between different components of software systems. The flaw specifically allows unauthenticated remote attackers to exploit the application's deserialization mechanism without requiring any prior authentication credentials or privileged access.
The technical nature of this vulnerability stems from the application's failure to properly validate and sanitize serialized data before processing it. When U-Office Force receives serialized content from external sources, it does not perform adequate input validation or security checks on the data structure. This creates an opportunity for malicious actors to craft specially designed serialized objects that, when processed by the vulnerable application, trigger unintended code execution. The vulnerability operates at the core of the application's data handling architecture, making it particularly dangerous as it can be exploited from any network location without requiring authentication.
The operational impact of this vulnerability is severe and far-reaching for organizations using U-Office Force. Remote attackers can leverage this flaw to execute arbitrary code on the affected server, potentially leading to complete system compromise, data exfiltration, and persistent backdoor access. The vulnerability affects the integrity and confidentiality of the entire system as it allows attackers to bypass normal access controls and gain unauthorized privileges. Organizations may face significant financial losses, regulatory penalties, and reputational damage if their systems are successfully compromised through this vector. The attack surface is particularly broad since the vulnerability is accessible to unauthenticated users, meaning that any individual with network access to the vulnerable application can attempt exploitation.
Security professionals should consider this vulnerability in the context of CWE-502, which specifically addresses deserialization of untrusted data as a source of security weaknesses. The ATT&CK framework would categorize this as a technique involving "Deserialization of Untrusted Data" under the T1210 category, which is commonly used for privilege escalation and persistence. Organizations should implement immediate mitigations including network segmentation to limit access to the vulnerable application, disabling unnecessary network services, and applying patches or workarounds provided by the vendor. Additionally, monitoring network traffic for suspicious serialized data patterns and implementing application firewalls can help detect and prevent exploitation attempts. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other applications and systems within the organization's infrastructure.