DASAN H660RM devices with firmware 1.03-0022 use a hard-coded key for logs encryption. Data stored using this key can be decrypted by anyone able to access this key.
Conclusion & alert: CVE-2019-9975 is rated High Exploit Risk (64.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.34%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-01-25 | 0.35% | 0.34% | -0.01% |
| 2 | 2026-01-22 | 1.30% | 0.35% | -0.95% |
| 3 | 2025-03-30 | — | 1.30% | — |
Full EPSS history (15 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.0 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| dasannetworks | h660rm_firmware | 1.03-0022 | cpe:2.3:o:dasannetworks:h660rm_firmware:1.03-0022:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://packetstormsecurity.com/files/152232/DASAN-H660RM-Information-Disclosure-Hardcoded-Key.html | Third Party Advisory VDB Entry |
| https://blog.burghardt.pl/2019/03/syslog_tool-cgi-on-dasan-h660rm-devices-with-firmware-1-03-0022-uses-a-hard-coded-key-for-logs-encryption/ | Exploit Third Party Advisory |
| https://seclists.org/bugtraq/2019/Mar/41 | Mailing List Third Party Advisory |