SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-20044

A post-authentication remote command injection vulnerability in SonicWall SMA100 allows a remote authenticated attacker to execute OS system commands in the appliance.

HIGH 8.8EPSS 40.1%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 40.1%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

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.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
40.07% probability · 99th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-78
Affected
sonicwall/sma 200 firmware · sonicwall/sma 210 firmware · sonicwall/sma 410 firmware · sonicwall/sma 400 firmware · sonicwall/sma 500v firmware
Source
PSIRT@sonicwall.com
EPSS trend
0%23%45%3 November 2026: 40.07%3 November 20263 November 2026

EPSS 40.1% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.