Skip to content
Fencer Vulns
high 8.8

CVE-2021-20044 in the critical feed json

A post-authentication remote command injection vulnerability in SonicWall SMA100 allows a remote authenticated attacker to execute OS syste…

published 2021-12-08 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-7507

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
40.1%
EPSS 40.1% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

A post-authentication remote command injection vulnerability in SonicWall SMA100 allows a remote authenticated attacker to execute OS system commands in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.

Exploit prediction

40.07% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C

Affected products

  • SonicWall SonicWall SMA100

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.