CVE-2021-20048

🗓️ 10 Jan 2022 14:10:16Reported by [email protected]Type

nvd🔗 web.nvd.nist.gov👁 33 Views

A buffer overflow in SonicOS SessionID HTTP respons

Reporter	Title	Published	Views	Family All 14
attackerkb	CVE-2021-20048	10 Jan 202214:10	–	attackerkb
BDU FSTEC	SonicOS Boundary Error Code Execution	31 Aug 202200:00	–	bdu_fstec
CNNVD	SonicWall SonicOS buffer error vulnerability	5 Jan 202200:00	–	cnnvd
CNVD	SonicWall SonicOS Buffer Overflow Vulnerability (CNVD-2022-06901)	10 Jan 202200:00	–	cnvd
CVE	CVE-2021-20048	7 Jan 202203:00	–	cve
Cvelist	CVE-2021-20048	7 Jan 202203:00	–	cvelist
EUVD	EUVD-2021-7511	3 Oct 202520:07	–	euvd
NCSC	Vulnerabilities fixed in SonicOS	6 Jan 202200:00	–	ncsc
osv_cve	CVE-2021-20048	10 Jan 202214:10	–	osv_cve
Prion	Stack overflow	10 Jan 202214:10	–	prion

NVD

Node

AND

sonicwall sonicosRange≤7.0.1-r1456

OR

sonicwall nsa_2650Match-

sonicwall nsa_2700Match-

sonicwall nsa_3650Match-

sonicwall nsa_3700Match-

sonicwall nsa_4650Match-

sonicwall nsa_4700Match-

sonicwall nsa_5650Match-

sonicwall nsa_6650Match-

sonicwall nsa_6700Match-

sonicwall nsa_9250Match-

sonicwall nsa_9450Match-

sonicwall nsa_9650Match-

sonicwall tz270Match-

sonicwall tz270wMatch-

sonicwall tz300Match-

sonicwall tz300pMatch-

sonicwall tz300wMatch-

sonicwall tz350Match-

sonicwall tz350wMatch-

sonicwall tz370Match-

sonicwall tz370wMatch-

sonicwall tz400Match-

sonicwall tz400wMatch-

sonicwall tz470Match-

sonicwall tz470wMatch-

sonicwall tz500Match-

sonicwall tz500wMatch-

sonicwall tz570Match-

sonicwall tz570pMatch-

sonicwall tz570wMatch-

sonicwall tz600Match-

sonicwall tz600pMatch-

sonicwall tz670Match-

Node

AND

sonicwall sonicosRange≤7.0.1-5023-1349

OR

sonicwall nsv_10Match-

sonicwall nsv_100Match-

sonicwall nsv_1600Match-

sonicwall nsv_200Match-

sonicwall nsv_25Match-

sonicwall nsv_270Match-

sonicwall nsv_300Match-

sonicwall nsv_400Match-

sonicwall nsv_470Match-

sonicwall nsv_50Match-

sonicwall nsv_800Match-

sonicwall nsv_870Match-

Node

AND

sonicwall sonicosRange≤7.0.1-5018-r1715

OR

sonicwall nssp_12400Match-

sonicwall nssp_12800Match-

sonicwall nssp_13700Match-

sonicwall nssp_15700Match-

Node

AND

sonicwall sonicosRange≤6.5.4.8

OR

sonicwall nsa_2650Match-

sonicwall nsa_2700Match-

sonicwall nsa_3650Match-

sonicwall nsa_3700Match-

sonicwall nsa_4650Match-

sonicwall nsa_4700Match-

sonicwall nsa_5650Match-

sonicwall nsa_6650Match-

sonicwall nsa_6700Match-

sonicwall nsa_9250Match-

sonicwall nsa_9450Match-

sonicwall nsa_9650Match-

sonicwall soho_250wMatch-

sonicwall supermassive_9200Match-

sonicwall supermassive_9400Match-

sonicwall supermassive_9600Match-

sonicwall supermassive_9800Match-

sonicwall tz270Match-

sonicwall tz270wMatch-

sonicwall tz300Match-

sonicwall tz300pMatch-

sonicwall tz300wMatch-

sonicwall tz350Match-

sonicwall tz350wMatch-

sonicwall tz370Match-

sonicwall tz370wMatch-

sonicwall tz400Match-

sonicwall tz400wMatch-

sonicwall tz470Match-

sonicwall tz470wMatch-

sonicwall tz500Match-

sonicwall tz500wMatch-

sonicwall tz570Match-

sonicwall tz570pMatch-

sonicwall tz570wMatch-

sonicwall tz600Match-

sonicwall tz600pMatch-

sonicwall tz670Match-

Node

AND

sonicwall sonicosRange≤6.5.1.13-1n

OR

sonicwall nssp_12400Match-

sonicwall nssp_12800Match-

sonicwall supermassive_9800Match-

Node

AND

sonicwall sonicosRange≤6.0.5.3-94o

OR

sonicwall supermassive_e10200Match-

sonicwall supermassive_e10400Match-

sonicwall supermassive_e10800Match-

Node

AND

sonicwall sonicosRange≤5.9.1.13

OR

sonicwall nsa_2650Match-

sonicwall nsa_2700Match-

sonicwall nsa_3650Match-

sonicwall nsa_3700Match-

sonicwall nsa_4650Match-

sonicwall nsa_4700Match-

sonicwall nsa_5650Match-

sonicwall nsa_6650Match-

sonicwall nsa_6700Match-

sonicwall nsa_9250Match-

sonicwall nsa_9450Match-

sonicwall nsa_9650Match-

sonicwall soho_250Match-

sonicwall soho_250wMatch-

sonicwall tz270Match-

sonicwall tz270wMatch-

sonicwall tz300Match-

sonicwall tz300pMatch-

sonicwall tz300wMatch-

sonicwall tz350Match-

sonicwall tz350wMatch-

sonicwall tz370Match-

sonicwall tz370wMatch-

sonicwall tz400Match-

sonicwall tz400wMatch-

sonicwall tz470Match-

sonicwall tz470wMatch-

sonicwall tz500Match-

sonicwall tz500wMatch-

Source	Link
psirt	www.psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0028

17 Jun 2026 03:33Current

CVSS 26.5

CVSS 3.18.8

EPSS0.01939

CWE-121 CWE-787

buffer overflow sonicos http response denial of service code execution firewall vulnerability gen 5 gen 6 gen 7 firmware versions