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CVE-2023-7342

Belden HiSecOS Web Server Privilege Escalation

Published: Apr 2, 2026Updated: Apr 3, 2026 Sources: CVE List NVDCWE-269
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.3%
Top 82.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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 Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-269

Affected Products

Hirschmann HiSecOS EAGLEBeldenNetworking Infrastructure
beldencommercialUSNetworking Infrastructureaka belden hirschmann, tofino security appliance

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://assets.belden.com/m/4828b7cf8b652105/original/Microsoft-Word-Belden_Security_Bulletin_BSECV-2021-07_1v0-docx.pdf
assets.belden.com
https://www.vulncheck.com/advisories/belden-hisecos-web-server-privilege-escalation
vulncheck.com

Timeline

Published
Apr 2, 2026
Last Updated
Apr 3, 2026

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