CVE-2021-20041

high

Description

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.

References

https://www.tenable.com/blog/sonicwall-urges-users-to-patch-several-vulnerabilities-in-secure-mobile-access-products-cve

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026

Details

Source: Mitre, NVD

Published: 2021-12-08

Updated: 2021-12-10

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.00438