# Sma 500v vulnerabilities > Sma 500v is made by SonicWall. We track 28 published vulnerabilities listed under that exact name, across 8 versions. 5 of them are on the list of flaws known to be exploited, the newest added on 1 May 2025. SonicWall lists newer releases under their own names, such as Sma 500v Firmware, so check those pages too. Canonical page: https://www.precursorintelligence.com/product/sonicwall/sma_500v ## At a glance - **Made by:** [SonicWall](https://www.precursorintelligence.com/vendors/sonicwall) - **Published vulnerabilities:** 28 - **Known to be exploited:** 5 (listed under the name Sma 500v) - **Versions tracked:** 8 - **Most recently added to the known-exploited list:** [CVE-2023-44221](https://www.precursorintelligence.com/what-is/cve-2023-44221), 1 May 2025. We keep watching the list. ## Is Sma 500v listed under other names? SonicWall also lists Sma 500v under more specific names, such as Sma 500v Firmware. Flaws listed only under those names are counted on their own pages, not here. - [Sma 500v Firmware](https://www.precursorintelligence.com/product/sonicwall/sma_500v_firmware): 27 published vulnerabilities ## Which versions of Sma 500v do the exploited flaws hit? Each exploited flaw lists the versions it affects, as published. "before 9.0.0.11-31sv" means every version up to, but not including, 9.0.0.11-31sv. - [CVE-2021-20035](https://www.precursorintelligence.com/what-is/cve-2021-20035) (SonicWall SMA100 Appliances OS Command Injection Vulnerability): before 9.0.0.11-31sv, 10.2.0.0 to before 10.2.0.8-37sv, 10.2.1.0 to before 10.2.1.1-19sv 4 more exploited flaws name Sma 500v without a version of its own (for example as the system other affected software runs on). They are in the list below. ## Which Sma 500v vulnerabilities are being exploited? 5 flaws are on the government list of vulnerabilities known to be exploited, newest first: - [CVE-2023-44221](https://www.precursorintelligence.com/what-is/cve-2023-44221): SonicWall SMA100 Appliances OS Command Injection Vulnerability. High, CVSS 7.2, chance of use in 30 days 76%, known exploited since 1 May 2025. - [CVE-2021-20035](https://www.precursorintelligence.com/what-is/cve-2021-20035): SonicWall SMA100 Appliances OS Command Injection Vulnerability. Medium, CVSS 6.5, chance of use in 30 days 4.2%, known exploited since 16 April 2025. - [CVE-2021-20028](https://www.precursorintelligence.com/what-is/cve-2021-20028): SonicWall Secure Remote Access (SRA) SQL Injection Vulnerability. Critical, CVSS 9.8, chance of use in 30 days 30%, known exploited since 28 March 2022. - [CVE-2021-20038](https://www.precursorintelligence.com/what-is/cve-2021-20038): SonicWall SMA 100 Appliances Stack-Based Buffer Overflow Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 28 January 2022. - [CVE-2021-20016](https://www.precursorintelligence.com/what-is/cve-2021-20016): SonicWall SSLVPN SMA100 SQL Injection Vulnerability. Critical, CVSS 9.8, chance of use in 30 days 40%, known exploited since 3 November 2021. ## Which Sma 500v flaws are most likely to be used? Ranked by the latest exploit-likelihood forecast (the chance each flaw is used in an attack in the next 30 days): - [CVE-2021-20038](https://www.precursorintelligence.com/what-is/cve-2021-20038): >99%, Critical (CVSS 9.8), known exploited - [CVE-2021-20034](https://www.precursorintelligence.com/what-is/cve-2021-20034): 81%, Critical (CVSS 9.1) - [CVE-2021-20039](https://www.precursorintelligence.com/what-is/cve-2021-20039): 79%, High (CVSS 8.8) - [CVE-2023-44221](https://www.precursorintelligence.com/what-is/cve-2023-44221): 76%, High (CVSS 7.2), known exploited - [CVE-2025-40598](https://www.precursorintelligence.com/what-is/cve-2025-40598): 64%, Medium (CVSS 6.1) - [CVE-2025-40596](https://www.precursorintelligence.com/what-is/cve-2025-40596): 57%, High (CVSS 7.3) - [CVE-2021-20044](https://www.precursorintelligence.com/what-is/cve-2021-20044): 40%, High (CVSS 8.8) - [CVE-2021-20016](https://www.precursorintelligence.com/what-is/cve-2021-20016): 40%, Critical (CVSS 9.8), known exploited - [CVE-2025-40597](https://www.precursorintelligence.com/what-is/cve-2025-40597): 31%, High (CVSS 7.5) - [CVE-2021-20028](https://www.precursorintelligence.com/what-is/cve-2021-20028): 30%, Critical (CVSS 9.8), known exploited ## Questions ### How many vulnerabilities does Sma 500v have? We track 28 published vulnerabilities listed under the name Sma 500v, across 8 versions. The most recent Sma 500v flaw added to the known-exploited list is CVE-2023-44221, on 1 May 2025. ### Which Sma 500v vulnerabilities are being exploited? 5 are on the list of flaws known to be exploited. The most recently added are CVE-2023-44221, CVE-2021-20035 and CVE-2021-20028. ### Why are newer Sma 500v flaws missing from this page? SonicWall also lists Sma 500v under more specific names, such as Sma 500v Firmware. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list. ### Which versions of Sma 500v do the exploited flaws affect? Each flaw names its own versions, usually as ranges. The newest, CVE-2021-20035, affects before 9.0.0.11-31sv, 10.2.0.0 to before 10.2.0.8-37sv, 10.2.1.0 to before 10.2.1.1-19sv. The versions for every exploited flaw are listed on this page. ### How do I get alerts for Sma 500v? Create a Precursor Intelligence account and track Sma 500v. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook. ## Running Sma 500v? Precursor Intelligence keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact