What’s Vulnerable › Vulnerabilities

CVE-2023-53908: HiSecOS 04.0.01 Privilege Escalation via User Role Modification

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-17 · updated 2026-06-17
• Weakness: CWE-269

Description

HiSecOS 04.0.01 contains a privilege escalation vulnerability that allows authenticated users to modify their access role through XML-based NETCONF configuration. Attackers can send crafted XML payloads to the /mops_data endpoint with a specific role value to elevate their user privileges to administrative level.

Affected products

• Belden HiSecOS: 04.0.01

References

• https://www.belden.com/products/industrial-networking-cybersecurity/software-solutions/device-software/hisecos-firewall-software
• https://www.exploit-db.com/exploits/51537
• https://www.vulncheck.com/advisories/hisecos-privilege-escalation-via-user-role-modification

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