Answer in brief
CVE-2018-25237 records a Critical severity (CVSS 9.3) vulnerability in Hirschmann HiSecOS Buffer Overflow via HTTPS Login. The current sources do not mark it as known exploited. The current feed maps Belden/Hirschmann HiSecOS Classic Firewall (EAGLE, EAGLE One) (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Belden/Hirschmann HiSecOS Classic Firewall (EAGLE, EAGLE One) (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Belden/Hirschmann HiSecOS Classic Firewall (EAGLE, EAGLE One)generic | >=0 <=05.3.02 | Not reported |
Published upstream
Apr 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 1, 2026
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.
Quoted source text, attributed separately from HOL analysis.