SonicWall vulnerabilities
- SonicWall has 94 CVE records published between 28 Oct 2023 and 28 Oct 2026, ranking #157 of 420 vendors on this site by that count.
- Of the 93 with a CVSS score, 60 (64.5%) are rated critical or high; 1 (1.1% of all) have no CVSS score.
- 19 vulnerabilities attributed to SonicWall are listed in CISA's Known Exploited Vulnerabilities (KEV) catalog; the most recent, CVE-2026-83548, was added on 2 Sep 2026.
- 13 of them (68.4%) are marked as known to be used in ransomware campaigns.
- For the 19 KEV entries with a published CVE record, the median time from CVE publication to KEV listing is 197 days.
Records are attributed to SonicWall from the vendor named in the source records. About the data.
CVE records per year
Show data as a table
| Year | CVE records |
|---|---|
| 2017 | 0 |
| 2018 | 1 |
| 2019 | 16 |
| 2020 | 17 |
| 2021 | 32 |
| 2022 | 20 |
| 2023 | 34 |
| 2024 | 21 |
| 2025 | 31 |
| 2026 | 40 |
2026 is partial (through 28 Oct 2026), shown in a lighter bar.
| Year | Records | Critical | High | Critical or high | Not scored |
|---|---|---|---|---|---|
| 2026 | 40 | 8 | 16 | 60% | 0% |
| 2025 | 31 | 6 | 17 | 74.2% | 0% |
| 2024 | 21 | 2 | 10 | 57.1% | 0% |
| 2023 | 34 | 1 | 8 | 90% | 70.6% |
| 2022 | 20 | 0 | 1 | 100% | 95% |
| 2021 | 32 | 4 | 2 | 75% | 75% |
| 2020 | 17 | 1 | 0 | 100% | 94.1% |
| 2019 | 16 | 0 | 2 | 100% | 87.5% |
| 2018 | 1 | 1 | 0 | 100% | 0% |
| 2017 | 0 | 0 | 0 | — | — |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Exploited vulnerabilities in CISA's KEV catalog
| CVE | Product | Name | Added | Ransomware |
|---|---|---|---|---|
| CVE-2026-83548 | SMA1000 Appliances | SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability | 2026-09-02 | Unknown |
| CVE-2026-83549 | SMA1000 Appliances | SonicWall SMA1000 Appliances OS Command Injection Vulnerability | 2026-09-02 | Unknown |
| CVE-2026-15409 | SMA1000 Appliances | SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability | 2026-07-14 | Known |
| CVE-2026-15410 | SMA1000 Appliances | SonicWall SMA1000 Appliances Code Injection Vulnerability | 2026-07-14 | Known |
| CVE-2025-40602 | SMA1000 appliance | SonicWall SMA1000 Missing Authorization Vulnerability | 2025-12-17 | Unknown |
| CVE-2023-44221 | SMA100 Appliances | SonicWall SMA100 Appliances OS Command Injection Vulnerability | 2025-05-01 | Unknown |
| CVE-2021-20035 | SMA100 Appliances | SonicWall SMA100 Appliances OS Command Injection Vulnerability | 2025-04-16 | Unknown |
| CVE-2024-53704 | SonicOS | SonicWall SonicOS SSLVPN Improper Authentication Vulnerability | 2025-02-18 | Known |
| CVE-2025-23006 | SMA1000 Appliances | SonicWall SMA1000 Appliances Deserialization Vulnerability | 2025-01-24 | Known |
| CVE-2024-40766 | SonicOS | SonicWall SonicOS Improper Access Control Vulnerability | 2024-09-09 | Known |
| CVE-2019-7483 | SMA100 | SonicWall SMA100 Directory Traversal Vulnerability | 2022-03-28 | Unknown |
| CVE-2021-20028 | Secure Remote Access (SRA) | SonicWall Secure Remote Access (SRA) SQL Injection Vulnerability | 2022-03-28 | Known |
| CVE-2020-5135 | SonicOS | SonicWall SonicOS Buffer Overflow Vulnerability | 2022-03-15 | Known |
| CVE-2021-20038 | SMA 100 Appliances | SonicWall SMA 100 Appliances Stack-Based Buffer Overflow Vulnerability | 2022-01-28 | Known |
| CVE-2019-7481 | SMA100 | SonicWall SMA100 SQL Injection Vulnerability | 2021-11-03 | Known |
| CVE-2021-20016 | SSLVPN SMA100 | SonicWall SSLVPN SMA100 SQL Injection Vulnerability | 2021-11-03 | Known |
| CVE-2021-20021 | SonicWall Email Security | SonicWall Email Security Improper Privilege Management Vulnerability | 2021-11-03 | Known |
| CVE-2021-20022 | SonicWall Email Security | SonicWall Email Security Unrestricted Upload of File Vulnerability | 2021-11-03 | Known |
| CVE-2021-20023 | SonicWall Email Security | SonicWall Email Security Path Traversal Vulnerability | 2021-11-03 | Known |
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.27, as of 27 Oct 2026. About the data.
Highest exploit-prediction scores (EPSS)
EPSS estimates the probability that a vulnerability is exploited in the next 30 days. These are the 10 highest-scoring SonicWall records today.
| CVE | EPSS | Percentile | Severity | In KEV |
|---|---|---|---|---|
| CVE-2021-20038 | 99.9% | 100% | Critical | Yes |
| CVE-2019-7481 | 99.9% | 100% | High | Yes |
| CVE-2024-53704 | 95.3% | 99.9% | High | Yes |
| CVE-2021-20021 | 88.8% | 99.8% | Critical | Yes |
| CVE-2023-34127 | 85.8% | 99.7% | High | No |
| CVE-2021-20034 | 81.8% | 99.6% | Not scored | No |
| CVE-2021-20039 | 78.7% | 99.6% | High | No |
| CVE-2023-44221 | 76.3% | 99.5% | High | Yes |
| CVE-2022-22274 | 75.5% | 99.5% | Not scored | No |
| CVE-2023-34133 | 72.8% | 99.4% | High | No |
Source: FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.27, as of 27 Oct 2026. About the data.