Sma 400 vulnerabilitiesAnd the versions its exploited flaws hit.
Sma 400 is made by SonicWall. We track 20 published vulnerabilities listed under that exact name, across 0 versions. 4 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 400 Firmware, so check those pages too.
The most recent Sma 400 flaw added to the known-exploited list is CVE-2023-44221, on 1 May 2025. We keep watching the known-exploited list.
Is Sma 400 listed under other names? Yes.
SonicWall also lists Sma 400 under more specific names, such as Sma 400 Firmware. Flaws listed only under those names are counted on their own pages, not here. If you run one of these, open its page for its own exploited flaws.
Which versions of Sma 400 do the exploited flaws hit?
Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.
Which Sma 400 vulnerabilities are being exploited?
4 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 7.2SonicWall SMA100 Appliances OS Command Injection Vulnerability
SonicWall SMA100 appliances contain an OS command injection vulnerability in the SSL-VPN management interface that allows a remote, authenticated attacker with administrative privilege to inject arbitrary commands as...
- 6.5SonicWall SMA100 Appliances OS Command Injection Vulnerability
SonicWall SMA100 appliances contain an OS command injection vulnerability in the management interface that allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user, which could...
- 9.8SonicWall SMA 100 Appliances Stack-Based Buffer Overflow Vulnerability
SonicWall SMA 100 devies are vulnerable to an unauthenticated stack-based buffer overflow vulnerability where exploitation can result in code execution.
- 9.8SonicWall SSLVPN SMA100 SQL Injection Vulnerability
SonicWall SSLVPN SMA100 contains a SQL injection vulnerability that allows remote exploitation for credential access by an unauthenticated attacker.
Which Sma 400 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. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- >99%
A Stack-based buffer overflow vulnerability in SMA100 Apache httpd server's mod_cgi module environment variables allows a remote unauthenticated attacker to potentially execute code as a 'nobody' user in the appliance.
- 81%CVE-2021-20034Critical
An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete an arbitrary file potentially resulting in a reboot to factory default settings.
- 79%CVE-2021-20039High
Improper neutralization of special elements in the SMA100 management interface '/cgi-bin/viewcert' POST http method allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user.
- 76%
Improper neutralization of special elements in the SMA100 SSL-VPN management interface allows a remote authenticated attacker with administrative privilege to inject arbitrary commands as a 'nobody' user, potentially...
- 40%CVE-2021-20044High
A post-authentication remote command injection vulnerability in SonicWall SMA100 allows a remote authenticated attacker to execute OS system commands in the appliance.
- 40%
A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access username password and other session related information.
- 25%CVE-2021-20045Critical
A buffer overflow vulnerability in SMA100 sonicfiles RAC_COPY_TO (RacNumber 36) method allows a remote unauthenticated attacker to potentially execute code as the 'nobody' user in the appliance.
- 25%CVE-2021-20040High
A relative path traversal vulnerability in the SMA100 upload funtion allows a remote unauthenticated attacker to upload crafted web pages or files as a 'nobody' user.
- 23%CVE-2021-20043High
A Heap-based buffer overflow vulnerability in SonicWall SMA100 getBookmarks method allows a remote authenticated attacker to potentially execute code as the nobody user in the appliance.
- 22%CVE-2025-32821High
A vulnerability in SMA100 allows a remote authenticated attacker with SSLVPN admin privileges can with admin privileges can inject shell command arguments to upload a file on the appliance.
Running Sma 400? We'll keep checking.
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1 flaw being exploited affects software Acme tracks
SonicWall SMA100 appliances contain an OS command injection vulnerability in the SSL-VPN management interface that allows a remote, authenticated attacker with administrative privilege to inject arbitrary commands as a 'nobody' user.
- Matched to
- Sma 400 on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 20 published vulnerabilities listed under the name Sma 400, across 0 versions. The most recent Sma 400 flaw added to the known-exploited list is CVE-2023-44221, on 1 May 2025.
4 are on the list of flaws known to be exploited. The most recently added are CVE-2023-44221, CVE-2021-20035 and CVE-2021-20038.
SonicWall also lists Sma 400 under more specific names, such as Sma 400 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.
Create a Precursor Intelligence account and track Sma 400. 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.