CVE-2018-25237

Hirschmann HiSecOS devices versions prior to 05.3.03 contain a buffer overflow vulnerability in the HTTPS login interface when RADIUS authentication is enabled that allows remote attackers to crash the device or execute arbitrary code by submitting a password longer than 128 characters. Attackers can exploit improper bounds checking in password handling to overflow a fixed-size buffer and achieve denial of service or remote code execution.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://assets.belden.com/m/2d5657b3e5d721c6/original/Security-Bulletin-RADIUS-Authentication-BSECV-2018-04.pdf
https://www.vulncheck.com/advisories/hirschmann-hisecos-buffer-overflow-via-https-login

Configurations

No configuration.

History

03 Apr 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-03 22:16

Updated : 2026-04-07 13:20

NVD link : CVE-2018-25237

Mitre link : CVE-2018-25237

CVE.ORG link : CVE-2018-25237

JSON object : View

Products Affected

No product.

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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