CVE-2021-20039
high-risk
Published 2021-12-08
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.
Do I need to act?
!
82.5% chance of exploitation in next 30 days
EPSS score — higher than 18% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10
High
NETWORK
/ LOW complexity
Affected Products (15)
Affected Vendors
References (5)
Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026
Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026
68
/ 100
high-risk
Severity
30/34 · Critical
Exploitability
20/34 · Moderate
Exposure
18/34 · Moderate