Exploited CVEs / By vendor / SonicWall
SonicWall vulnerabilities actively exploited
17 SonicWall CVEs on the CISA Known Exploited Vulnerabilities catalog, newest first. Refreshed daily.
Every CVE below is confirmed exploited in the wild, not just theoretically severe. The newest addition is CVE-2026-15409 (SMA1000 Appliances, added 2026-07-14). 12 of the 17 are used in ransomware campaigns. New CISA KEV entries appear here the day they are cataloged; the freshest across all vendors are on exploited this week.
Senserva AI Opinion and rich prompt for SonicWall exploited CVEs
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
SMA1000 Appliances: 3 exploited CVEs
| CVE | Product | Added to KEV | Signals |
|---|---|---|---|
| CVE-2026-15409 | SMA1000 Appliances | 2026-07-14 | ransomware, CVSS 10.0, EPSS 74% |
| CVE-2026-15410 | SMA1000 Appliances | 2026-07-14 | ransomware, CVSS 7.2, EPSS 76% |
| CVE-2025-23006 | SMA1000 Appliances | 2025-01-24 | ransomware, CVSS 9.8, EPSS 23% |
SonicOS: 3 exploited CVEs
| CVE | Product | Added to KEV | Signals |
|---|---|---|---|
| CVE-2024-53704 | SonicOS | 2025-02-18 | ransomware, CVSS 9.8, EPSS 95% |
| CVE-2024-40766 | SonicOS | 2024-09-09 | ransomware, CVSS 9.8, EPSS 18% |
| CVE-2020-5135 | SonicOS | 2022-03-15 | CVSS 9.8, EPSS 25% |
SonicWall Email Security: 3 exploited CVEs
| CVE | Product | Added to KEV | Signals |
|---|---|---|---|
| CVE-2021-20021 | SonicWall Email Security | 2021-11-03 | ransomware, CVSS 9.8, EPSS 83% |
| CVE-2021-20022 | SonicWall Email Security | 2021-11-03 | ransomware, CVSS 7.2, EPSS 17% |
| CVE-2021-20023 | SonicWall Email Security | 2021-11-03 | ransomware, CVSS 4.9, EPSS 50% |
Other SonicWall products
| CVE | Product | Added to KEV | Signals |
|---|---|---|---|
| CVE-2025-40602 | SMA1000 appliance | 2025-12-17 | CVSS 6.6, EPSS 2% |
| CVE-2023-44221 | SMA100 Appliances | 2025-05-01 | CVSS 7.2, EPSS 75% |
| CVE-2021-20035 | SMA100 Appliances | 2025-04-16 | CVSS 6.5, EPSS 4% |
| CVE-2019-7483 | SMA100 | 2022-03-28 | CVSS 7.5, EPSS 4% |
| CVE-2021-20028 | Secure Remote Access (SRA) | 2022-03-28 | ransomware, CVSS 9.8, EPSS 30% |
| CVE-2021-20038 | SMA 100 Appliances | 2022-01-28 | ransomware, CVSS 9.8, EPSS 100% |
| CVE-2019-7481 | SMA100 | 2021-11-03 | ransomware, CVSS 7.5, EPSS 100% |
| CVE-2021-20016 | SSLVPN SMA100 | 2021-11-03 | ransomware, CVSS 9.8, EPSS 37% |
Common questions about exploited SonicWall CVEs
Which SonicWall vulnerabilities are actively exploited?
As of August 2026, 17 SonicWall CVEs are on the CISA Known Exploited Vulnerabilities catalog, meaning exploitation in the wild is confirmed. The most-listed products are SMA1000 Appliances (3), SonicOS (3), SonicWall Email Security (3). 12 are linked to ransomware campaigns.
What is the newest exploited SonicWall CVE?
CVE-2026-15409, affecting SMA1000 Appliances, added to the CISA KEV catalog on 2026-07-14. This page refreshes daily, so the newest entry is always first in the table.
How urgent are these SonicWall CVEs?
KEV listing is the strongest fix-first signal there is: it means confirmed exploitation, not a prediction. Patch these ahead of higher-CVSS issues that nobody is exploiting. Check the vendor advisory (linked below) for fixed versions and workarounds.
Can I ask my own AI about exploited SonicWall CVEs?
Yes. This page includes a free copy-paste AI prompt carrying the newest SonicWall KEV entries, with CVSS, EPSS, and ransomware context, into Claude, ChatGPT, or Copilot. The data is refreshed twice a day (5 AM and 3 PM US Central).
Authoritative references
All vendors, searchable with due dates and CSV export: the exploited-CVE tracker. Every vendor with a page: exploited by vendor.