CVEvulnerability

CVE-2021-20041

7.5 HIGH Published 2021-12-08 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-12-08
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C
Weaknesses
CWE-835

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.

Affected configurations

• 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

Related

Weakness · CWE (1)

  • CWE-835 Loop with Unreachable Exit Condition weakness

References