Email Security Virtual Appliance
by Sonicwall
Immediate action recommended
Email Security Virtual Appliance 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
75.0%
Confirmed actively exploited (CISA)
75.0%
Public exploit code available
0.0%
Based on 4 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-2021-20021 | 9.8 | 91.7% | Yes |
| CVE-2021-20023 | 4.9 | 42.7% | Yes |
| CVE-2021-20022 | 7.2 | 20.0% | Yes |
| CVE-2021-20025 | 7.8 | 0.0% | — |
95
/ 100
critical-risk
Active Threat
50/50 · Critical
Exploit Availability
45/50 · Critical
Score uses Wilson score intervals to account for sample size. Products with few CVEs are scored conservatively.