7.5
CVSSv3

CVE-2021-20041

Published: 08/12/2021 Updated: 10/12/2021
CVSS v2 Base Score: 7.8 | Impact Score: 6.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 694
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Vulnerability Summary

An unauthenticated and remote adversary can consume all of the device's CPU due to crafted HTTP requests sent to SMA100 /fileshare/sonicfiles/sonicfiles resulting in a loop with unreachable exit condition. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.

Vulnerability Trend

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sonicwall sma_200_firmware 9.0.0.11-31sv

sonicwall sma_200_firmware 10.2.0.8-37sv

sonicwall sma_200_firmware 10.2.1.1-19sv

sonicwall sma_210_firmware 9.0.0.11-31sv

sonicwall sma_210_firmware 10.2.0.8-37sv

sonicwall sma_210_firmware 10.2.1.1-19sv

sonicwall sma_410_firmware 9.0.0.11-31sv

sonicwall sma_410_firmware 10.2.0.8-37sv

sonicwall sma_410_firmware 10.2.1.1-19sv

sonicwall sma_400_firmware 9.0.0.11-31sv

sonicwall sma_400_firmware 10.2.0.8-37sv

sonicwall sma_400_firmware 10.2.1.1-19sv

sonicwall sma_500v_firmware 9.0.0.11-31sv

sonicwall sma_500v_firmware 10.2.0.8-37sv

sonicwall sma_500v_firmware 10.2.1.1-19sv