CVE-2021-33626

🗓️ 01 Oct 2021 02:21:29Reported by mitreType

cve

cve🔗 web.nvd.nist.gov👁 90 Views

Vulnerability in SMM branch allows arbitrary code executio

Reporter	Title	Published	Views	Family All 12
Broadcom	BSA-2022-1763	29 Mar 202200:00	–	broadcom
CNNVD	Insyde InsydeH2O 安全漏洞	30 Sep 202100:00	–	cnnvd
CNVD	Insyde InsydeH2O Memory Corruption Vulnerability	8 Oct 202100:00	–	cnvd
Cvelist	CVE-2021-33626	1 Oct 202102:21	–	cvelist
EUVD	EUVD-2021-20303	7 Oct 202500:30	–	euvd
F5 Networks	K45810018: Multiple Insyde BIOS/EFI vulnerabilities	21 Feb 202320:01	–	f5
NVD	CVE-2021-33626	1 Oct 202103:15	–	nvd
OSV	CVE-2021-33626	1 Oct 202103:15	–	osv
Prion	Design/Logic Flaw	1 Oct 202103:15	–	prion
RedhatCVE	CVE-2021-33626	9 Jan 202611:27	–	redhatcve

NVD

Node

insyde insydeh2oRange5.3–5.34.44

Node

insyde insydeh2oRange5.2–5.25.44

Node

insyde insydeh2oRange5.1–5.16.25

Node

insyde insydeh2oRange5.4–5.42.44

Node

insyde insydeh2oRange5.3–5.35.25

Node

insyde insydeh2oRange5.2–5.26.25

Node

insyde insydeh2oRange5.4–5.43.25

Node

siemens ruggedcom_apr1808_firmwareMatch-

AND

siemens ruggedcom_apr1808Match-

Node

siemens simatic_field_pg_m5_firmwareMatch-

AND

siemens simatic_field_pg_m5Match-

Node

siemens simatic_field_pg_m6_firmwareMatch-

AND

siemens simatic_field_pg_m6Match-

Node

siemens simatic_ipc127e_firmwareMatch-

AND

siemens simatic_ipc127eMatch-

Node

siemens simatic_ipc227g_firmwareMatch-

AND

siemens simatic_ipc227gMatch-

Node

siemens simatic_ipc277g_firmwareMatch-

AND

siemens simatic_ipc277gMatch-

Node

siemens simatic_ipc327g_firmwareMatch-

AND

siemens simatic_ipc327gMatch-

Node

siemens simatic_ipc377g_firmwareMatch-

AND

siemens simatic_ipc377gMatch-

Node

siemens simatic_ipc427e_firmwareMatch-

AND

siemens simatic_ipc427eMatch-

Node

siemens simatic_ipc477e_firmwareMatch-

AND

siemens simatic_ipc477eMatch-

Node

siemens simatic_ipc477e_pro_firmwareMatch-

AND

siemens simatic_ipc477e_proMatch-

Node

siemens simatic_ipc627e_firmwareMatch-

AND

siemens simatic_ipc627eMatch-

Node

siemens simatic_ipc647e_firmwareMatch-

AND

siemens simatic_ipc647eMatch-

Node

siemens simatic_ipc677e_firmwareMatch-

AND

siemens simatic_ipc677eMatch-

Node

siemens simatic_ipc847e_firmwareMatch-

AND

siemens simatic_ipc847eMatch-

Node

siemens simatic_itp1000_firmwareMatch-

AND

siemens simatic_itp1000Match-

Source	Link
security	www.security.netapp.com/advisory/ntap-20220216-0006/
insyde	www.insyde.com/security-pledge
cert-portal	www.cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
insyde	www.insyde.com/security-pledge/SA-2021001
kb	www.kb.cert.org/vuls/id/796611

04 Nov 2025 20:16Current

8High risk

Vulners AI Score8

CVSS 24.6

CVSS 3.17.8

EPSS0.00078

cve-2021-33626 vulnerability smm system management mode swsmi buffer pointer commbuffer smram arbitrary code execution nvd