Secure Mobile Access (SMA)
CVE-2021-20039: Improper neutralization of special elements in the SMA100 management interface '/cgi-bin/viewcert' POST htt…
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.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| SonicWall SMA100 9.0 | See the advisory |
| SonicWall SMA100 10.2 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.