CVE-2018-25237Hirschmann HiSecOS Buffer Overflow via HTTPS Login
Updated under an hour ago ()
Does this affect you?
It affects Belden Hirschmann HiSecOS Classic Firewall (EAGLE, EAGLE One). Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-120
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Belden Hirschmann HiSecOS Classic Firewall (EAGLE, EAGLE One) belden:hirschmann_hisecos_classic_firewall_eagle_eagle_one (from the name) | 05.3.03 not affected; through 05.3.02 | CNA record |
References
- https://assets.belden.com/m/2d5657b3e5d721c6/original/Security-Bulletin-RADIUS-Authentication-BSECV-2018-04.pdfvendor-advisory
- https://www.vulncheck.com/advisories/hirschmann-hisecos-buffer-overflow-via-https-loginthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.