Windows Server 1803
by Microsoft
Immediate action recommended
Windows Server 1803 has critical exploitation rates across its known vulnerabilities.
What to do
- Check for patches and apply immediately
- Review whether this software can be replaced with a safer alternative
- Consult your IT provider about mitigation options
What Attackers Target
Vulnerabilities with high exploit probability
77.1%
Confirmed actively exploited (CISA)
82.9%
Public exploit code available
11.4%
Based on 35 known vulnerabilities. Percentages show the proportion that are actively dangerous — a low percentage means most vulnerabilities in this product are not being exploited.
Most Dangerous Vulnerabilities
| CVE | CVSS | Exploit Probability | Confirmed |
|---|---|---|---|
| CVE-2020-0601 | 8.1 | 94.1% | Yes |
| CVE-2018-0824 | 8.8 | 91.5% | Yes |
| CVE-2019-0803 | 7.8 | 89.8% | Yes |
| CVE-2018-8414 | 8.8 | 87.9% | Yes |
| CVE-2020-0938 | 7.8 | 87.0% | Yes |
| CVE-2018-8453 | 7.8 | 81.3% | Yes |
| CVE-2020-1054 | 7.8 | 80.9% | Yes |
| CVE-2020-0787 | 7.8 | 59.9% | Yes |
| CVE-2019-1405 | 7.8 | 53.9% | Yes |
| CVE-2018-8406 | 7.8 | 50.0% | Yes |
| CVE-2018-8405 | 7.8 | 50.0% | Yes |
| CVE-2018-8239 | 5.5 | 43.5% | — |
| CVE-2019-1322 | 7.8 | 36.5% | Yes |
| CVE-2020-0683 | 7.8 | 34.5% | Yes |
| CVE-2019-0903 | 8.8 | 34.4% | Yes |
| CVE-2019-1253 | 7.8 | 31.9% | Yes |
| CVE-2018-8231 | 8.1 | 31.4% | — |
| CVE-2019-1069 | 7.8 | 30.1% | Yes |
| CVE-2019-0543 | 7.8 | 24.5% | Yes |
| CVE-2019-0703 | 6.5 | 23.2% | Yes |
100
/ 100
critical-risk
Active Threat
50/50 · Critical
Exploit Availability
50/50 · Critical
Score uses Wilson score intervals to account for sample size. Products with few CVEs are scored conservatively.