Opnsense
C
CAUTION
19
Total CVEs
5
Crit / High
2
Medium
83%
Unpatched
0%
Patched
8.0
Avg CVSS
0
CISA KEV
// Data sourced from NVD · CISA KEV · RHSA · GHSA · Debian · OSV · EPSS · Exploit-DB
How we collect data →
CVE Trend by Year
Patch Coverage
✓ 0 patched ✗ 10 unpatched ~ 2 under review
Intelligence by Audience
PoC Available
2 / 20 shown
CISA KEV (Exploited)
0
Shodan Dorks
ssl:"opnsense" port:443
org:"Opnsense" http.status:200
Top EPSS (Exploitation Probability)
Quick Facts for Reporting
Total CVEs tracked
19
Critical severity
4
Actively exploited (CISA)
0
Unpatched ratio
83%
Avg CVSS score
8.0
Security grade
C (CAUTION)
NVD Data Attribution
Source: NIST National Vulnerability Database (NVD) + GitHub Advisory Database.
Data aggregated by Valters IT Hub · valtersit.com
Last updated: 2026-06-14
Data aggregated by Valters IT Hub · valtersit.com
Last updated: 2026-06-14
Security Risk Score (for investors)
LOW
Vuln Volume
POOR
Patch Responsiveness
LOW
CISA Exposure
⚠ Not financial advice. Past security incidents do not guarantee future stock performance.
Security News Google News
Recent CVEs
showing 20 of 12
| CVE ID | Severity | Patch | EPSS | Date |
|---|---|---|---|---|
| CVE-2019-25377 | 4.8 MEDIUM | UNKNOWN / UNPATCHED | 0.25% | 2026-02-15 |
| CVE-2019-25376 | 5.1 MEDIUM | UNKNOWN / UNPATCHED | 0.38% | 2026-02-15 |
| CVE-2019-25375 | 5.1 MEDIUM | UNKNOWN / UNPATCHED | 0.37% | 2026-02-15 |
| CVE-2019-25374 | 5.1 MEDIUM | UNKNOWN / UNPATCHED | 0.33% | 2026-02-15 |
| CVE-2019-25373 | 5.1 MEDIUM | UNKNOWN / UNPATCHED | 0.21% | 2026-02-15 |
| CVE-2019-25372 | 5.1 MEDIUM | UNKNOWN / UNPATCHED | 0.25% | 2026-02-15 |
| CVE-2019-25371 | 5.1 MEDIUM | UNKNOWN / UNPATCHED | 0.25% | 2026-02-15 |
| CVE-2019-25370 | 5.1 MEDIUM | UNKNOWN / UNPATCHED | 0.24% | 2026-02-15 |
| CVE-2019-25369 | 5.1 MEDIUM | UNKNOWN / UNPATCHED | 0.21% | 2026-02-15 |
| CVE-2019-25368 | 4.8 MEDIUM | UNKNOWN / UNPATCHED | 0.14% | 2026-02-15 |
| CVE-2023-39002 PoC | ? N/A | PATCH UNDER REVIEW | 1.20% | 2023-08-09 |
| CVE-2023-39007 PoC | ? N/A | PATCH UNDER REVIEW | 2.61% | 2023-08-09 |
Intel
Founded2015
Trust ScoreC — CAUTION
Max CVSS9.1
Last Updated2026-06-14
Top Weaknesses
CWE-79
Cross-Site Scripting (XSS)
12 occurrences in Opnsense CVEs
(63% of total)
CWE-88
Unknown Weakness Type
2 occurrences in Opnsense CVEs
(11% of total)
CWE-78
Unknown Weakness Type
2 occurrences in Opnsense CVEs
(11% of total)
CWE-307
Unknown Weakness Type
1 occurrence in Opnsense CVEs
(5% of total)
CWE-352
Cross-Site Request Forgery (CSRF)
1 occurrence in Opnsense CVEs
(5% of total)
CWE-90
Unknown Weakness Type
1 occurrence in Opnsense CVEs
(5% of total)
Company Profile
OPNsense is an open-source, FreeBSD-based firewall and routing platform developed by Deciso B.V. It provides enterprise-grade network security features such as intrusion detection, VPN, and traffic shaping, and is widely used as a cost-effective alternative to commercial firewalls. Its significance in cybersecurity lies in its transparent development process and strong community support for hardening network perimeters.
Response Metrics
Est. MTTR ⓘ
~500 days
(Critical)
Mean Time To Remediate. Estimates days from CVE disclosure to patch.
Industry avg: ~60d (good) · 100-300d (poor) · 300d+ (critical)
Industry avg: ~60d (good) · 100-300d (poor) · 300d+ (critical)
CVE Trend ⓘ ↗ +1500% worse
CVE count 2026 vs 2025:
1 → 16 CVEs
Patch Speed ⓘ Poor (>65% open)
83% of CVEs still unpatched.
Excellent: <20% · Good: 20-40% · Avg: 40-65% · Poor: >65%
Financial Risk Estimate
Est. GDPR Low
€514K
Est. GDPR High
€5.1M
Based on 4 critical CVEs, 0 CISA KEV, 79% unpatched. Model: GDPR Art.83 · not legal advice.
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