CVE-2021-20042

🗓️ 08 Dec 2021 10:15:08Reported by [email protected]Type

nvd

nvd🔗 web.nvd.nist.gov👁 19 Views

SMA 100 unauthorized proxy bypass vulnerability

Reporter	Title	Published	Views	Family All 17
Circl	CVE-2021-20042	8 Dec 202112:23	–	circl
CNNVD	SonicWall SMA100 安全漏洞	7 Dec 202100:00	–	cnnvd
CNVD	SonicWall SMA100 has an unspecified vulnerability	14 Dec 202100:00	–	cnvd
CVE	CVE-2021-20042	8 Dec 202109:55	–	cve
Cvelist	CVE-2021-20042	8 Dec 202109:55	–	cvelist
EUVD	EUVD-2021-7505	3 Oct 202520:07	–	euvd
NCSC	Vulnerabilities fixed in SonicWall SMA100 series	8 Dec 202100:00	–	ncsc
OSV	CVE-2021-20042	8 Dec 202110:15	–	osv
Prion	Design/Logic Flaw	8 Dec 202110:15	–	prion
Positive Technologies	PT-2021-13738 · Sma 410 +5 · Sma 410 +5	8 Dec 202100:00	–	ptsecurity

NVD

Node

sonicwall sma_200_firmwareMatch9.0.0.11-31sv

OR

sonicwall sma_200_firmwareMatch10.2.0.8-37sv

OR

sonicwall sma_200_firmwareMatch10.2.1.1-19sv

AND

sonicwall sma_200Match-

Node

sonicwall sma_210_firmwareMatch9.0.0.11-31sv

OR

sonicwall sma_210_firmwareMatch10.2.0.8-37sv

OR

sonicwall sma_210_firmwareMatch10.2.1.1-19sv

AND

sonicwall sma_210Match-

Node

sonicwall sma_410_firmwareMatch9.0.0.11-31sv

OR

sonicwall sma_410_firmwareMatch10.2.0.8-37sv

OR

sonicwall sma_410_firmwareMatch10.2.1.1-19sv

AND

sonicwall sma_410Match-

Node

sonicwall sma_400_firmwareMatch9.0.0.11-31sv

OR

sonicwall sma_400_firmwareMatch10.2.0.8-37sv

OR

sonicwall sma_400_firmwareMatch10.2.1.1-19sv

AND

sonicwall sma_400Match-

Node

sonicwall sma_500v_firmwareMatch9.0.0.11-31sv

OR

sonicwall sma_500v_firmwareMatch10.2.0.8-37sv

OR

sonicwall sma_500v_firmwareMatch10.2.1.1-19sv

AND

sonicwall sma_500vMatch-

Source	Link
psirt	www.psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026

17 Jun 2026 03:33Current

CVSS 27.5

CVSS 3.19.8

EPSS0.02663

unauthenticated remote attacker sma 100 unintended proxy intermediary undetectable proxy firewall rules vulnerability affected sma 200 sma 210 sma 400 sma 410 sma 500v appliances