CVE-2023-7342
HIGH EPSS 17.9%
Published Apr 2, 20262mo ago · Modified Jun 17, 20261w ago
8.7 CVSS 4.0
Published Apr 2, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago
Description
HiSecOS web server versions 03.4.00 prior to 04.1.00 contains a privilege escalation vulnerability that allows authenticated users with operator or auditor roles to escalate privileges to the administrator role by sending specially crafted packets to the web server. Attackers can exploit this flaw to gain full administrative access to the affected device.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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 Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
17.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-269 Improper Privilege Management Authorization
References 2
- assets.belden.com https://assets.belden.com/m/4828b7cf8b652105/original/Microsoft-Word-Belden_Security_Bulletin_BSECV-2021-07_1v0-docx.pdf
- vulncheck.com https://www.vulncheck.com/advisories/belden-hisecos-web-server-privilege-escalation
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.