ChangeIntel IT change radar

Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2018-25237

Hirschmann HiSecOS Buffer Overflow via HTTPS Login

CVSS 3.1 9.8 CRITICALCVSS 4.0 9.3 CRITICALCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2018-25237

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2018-25237

Published

Hirschmann HiSecOS Classic Firewall (EAGLE, EAGLE One)

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Belden",
                    "product": "Hirschmann HiSecOS Classic Firewall (EAGLE, EAGLE One)",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "05.3.03",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "0",
                            "versionType": "custom",
                            "lessThanOrEqual": "05.3.02"
                        }
                    ],
                    "defaultStatus": "affected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON