CVE-2021-20027

🗓️ 14 Jun 2021 23:15:07Reported by [email protected]Type

nvd

nvd🔗 web.nvd.nist.gov👁 8 Views

Buffer overflow vulnerability in SonicOS allows remote Do

Reporter	Title	Published	Views	Family All 9
CNNVD	SonicWall SonicOS 缓冲区错误漏洞	14 Jun 202100:00	–	cnnvd
CNVD	SonicWall SonicOS Buffer Overflow Vulnerability (CNVD-2021-43371)	17 Jun 202100:00	–	cnvd
CVE	CVE-2021-20027	14 Jun 202122:30	–	cve
Cvelist	CVE-2021-20027	14 Jun 202122:30	–	cvelist
EUVD	EUVD-2021-7490	3 Oct 202520:07	–	euvd
NCSC	Vulnerability fixed in SonicOS	15 Jun 202100:00	–	ncsc
Prion	Buffer overflow	14 Jun 202123:15	–	prion
RedhatCVE	CVE-2021-20027	22 May 202519:05	–	redhatcve
SonicWall	SonicOS vulnerability involving improper neutralization of HTTP header resulting in unauthenticated Denial of Service (DoS)	13 Jun 202118:58	–	sonicwall

NVD

Node

sonicwall sonicosRange≤7.0.1-r1262

AND

sonicwall nsa_2650Match-

OR

sonicwall nsa_2700Match-

OR

sonicwall nsa_3650Match-

OR

sonicwall nsa_3700Match-

OR

sonicwall nsa_4650Match-

OR

sonicwall nsa_4700Match-

OR

sonicwall nsa_5650Match-

OR

sonicwall nsa_6650Match-

OR

sonicwall nsa_6700Match-

OR

sonicwall nsa_9250Match-

OR

sonicwall nsa_9450Match-

OR

sonicwall nsa_9650Match-

OR

sonicwall tz270Match-

OR

sonicwall tz270wMatch-

OR

sonicwall tz300Match-

OR

sonicwall tz300pMatch-

OR

sonicwall tz300wMatch-

OR

sonicwall tz350Match-

OR

sonicwall tz350wMatch-

OR

sonicwall tz370Match-

OR

sonicwall tz370wMatch-

OR

sonicwall tz400Match-

OR

sonicwall tz400wMatch-

OR

sonicwall tz470Match-

OR

sonicwall tz470wMatch-

OR

sonicwall tz500Match-

OR

sonicwall tz500wMatch-

OR

sonicwall tz570Match-

OR

sonicwall tz570pMatch-

OR

sonicwall tz570wMatch-

OR

sonicwall tz600Match-

OR

sonicwall tz600pMatch-

OR

sonicwall tz670Match-

Node

sonicwall sonicosRange≤7.0.1-r.1219

AND

sonicwall nsv_10Match-

OR

sonicwall nsv_100Match-

OR

sonicwall nsv_1600Match-

OR

sonicwall nsv_200Match-

OR

sonicwall nsv_25Match-

OR

sonicwall nsv_270Match-

OR

sonicwall nsv_300Match-

OR

sonicwall nsv_400Match-

OR

sonicwall nsv_470Match-

OR

sonicwall nsv_50Match-

OR

sonicwall nsv_800Match-

OR

sonicwall nsv_870Match-

Node

sonicwall sonicosRange≤7.0.1-r514

AND

sonicwall nssp_12400Match-

OR

sonicwall nssp_12800Match-

OR

sonicwall nssp_13700Match-

OR

sonicwall nssp_15700Match-

Node

sonicwall sonicosRange≤5.9.1.13

AND

sonicwall nsa_2650Match-

OR

sonicwall nsa_2700Match-

OR

sonicwall nsa_3650Match-

OR

sonicwall nsa_3700Match-

OR

sonicwall nsa_4650Match-

OR

sonicwall nsa_4700Match-

OR

sonicwall nsa_5650Match-

OR

sonicwall nsa_6650Match-

OR

sonicwall nsa_6700Match-

OR

sonicwall nsa_9250Match-

OR

sonicwall nsa_9450Match-

OR

sonicwall nsa_9650Match-

OR

sonicwall soho_250Match-

OR

sonicwall soho_250wMatch-

OR

sonicwall tz270Match-

OR

sonicwall tz270wMatch-

OR

sonicwall tz300Match-

OR

sonicwall tz300pMatch-

OR

sonicwall tz300wMatch-

OR

sonicwall tz350Match-

OR

sonicwall tz350wMatch-

OR

sonicwall tz370Match-

OR

sonicwall tz370wMatch-

OR

sonicwall tz400Match-

OR

sonicwall tz400wMatch-

OR

sonicwall tz470Match-

OR

sonicwall tz470wMatch-

OR

sonicwall tz500Match-

OR

sonicwall tz500wMatch-

OR

sonicwall tz570Match-

OR

sonicwall tz570pMatch-

OR

sonicwall tz570wMatch-

OR

sonicwall tz600Match-

OR

sonicwall tz600pMatch-

OR

sonicwall tz670Match-

Node

sonicwall sonicosRange≤6.5.1.12

AND

sonicwall nssp_12400Match-

OR

sonicwall nssp_12800Match-

OR

sonicwall supermassive_9800Match-

Node

sonicwall sonicosRange≤6.5.4.7

AND

sonicwall nsa_2650Match-

OR

sonicwall nsa_2700Match-

OR

sonicwall nsa_3650Match-

OR

sonicwall nsa_3700Match-

OR

sonicwall nsa_4650Match-

OR

sonicwall nsa_4700Match-

OR

sonicwall nsa_5650Match-

OR

sonicwall nsa_6650Match-

OR

sonicwall nsa_6700Match-

OR

sonicwall nsa_9250Match-

OR

sonicwall nsa_9450Match-

OR

sonicwall nsa_9650Match-

OR

sonicwall soho_250Match-

OR

sonicwall soho_250wMatch-

OR

sonicwall supermassive_9200Match-

OR

sonicwall supermassive_9400Match-

OR

sonicwall supermassive_9600Match-

OR

sonicwall tz270Match-

OR

sonicwall tz270wMatch-

OR

sonicwall tz300Match-

OR

sonicwall tz300pMatch-

OR

sonicwall tz300wMatch-

OR

sonicwall tz350Match-

OR

sonicwall tz350wMatch-

OR

sonicwall tz370Match-

OR

sonicwall tz370wMatch-

OR

sonicwall tz400Match-

OR

sonicwall tz400wMatch-

OR

sonicwall tz470Match-

OR

sonicwall tz470wMatch-

OR

sonicwall tz500Match-

OR

sonicwall tz500wMatch-

OR

sonicwall tz570Match-

OR

sonicwall tz570pMatch-

OR

sonicwall tz570wMatch-

OR

sonicwall tz600Match-

OR

sonicwall tz600pMatch-

OR

sonicwall tz670Match-

Node

sonicwall sonicos

AND

sonicwall nsv_10Match-

OR

sonicwall nsv_100Match-

OR

sonicwall nsv_1600Match-

OR

sonicwall nsv_200Match-

OR

sonicwall nsv_25Match-

OR

sonicwall nsv_270Match-

OR

sonicwall nsv_300Match-

OR

sonicwall nsv_400Match-

OR

sonicwall nsv_470Match-

OR

sonicwall nsv_50Match-

OR

sonicwall nsv_800Match-

OR

sonicwall nsv_870Match-

Node

sonicwall sonicosRange≤6.0.5.3-94o

AND

sonicwall supermassive_e10200Match-

OR

sonicwall supermassive_e10400Match-

OR

sonicwall supermassive_e10800Match-

Source	Link
psirt	www.psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0016

17 Jun 2026 03:33Current

CVSS 25

CVSS 3.17.5

EPSS0.01291

sonicos buffer overflow remote attacker dos vulnerability gen5 gen6 gen7 platforms sonicosv virtual firewalls