CVE-2021-33625
Summary
| CVE | CVE-2021-33625 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2022-02-03 02:15:06 UTC |
| Updated | 2026-08-11 13:17:19 UTC |
| Description | An issue was discovered in Kernel 5.x in Insyde InsydeH2O, affecting HddPassword. Software SMI services that use the Communicate() function of the EFI_SMM_COMMUNICATION_PROTOCOL do not check whether the address of the buffer is valid, which allows use of SMRAM, MMIO, or OS kernel addresses. |
Risk And Classification
Primary CVSS: v3.1 7.5 HIGH from [email protected]
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Problem Types: CWE-119 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |
| 2.0 | [email protected] | Primary | 6.9 | AV:L/AC:M/Au:N/C:C/I:C/A:C |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
HighPrivileges Required
HighUser Interaction
NoneScope
ChangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v2.0 Breakdown
Access Vector
LocalAccess Complexity
MediumAuthentication
NoneConfidentiality
CompleteIntegrity
CompleteAvailability
CompleteAV:L/AC:M/Au:N/C:C/I:C/A:C
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Na | N/a | affected n/a | Not specified |
| ADP | Siemens | RUGGEDCOM APE1808 - BIOS | affected V1.0.202N custom | Not specified |
| ADP | Siemens | SIMATIC Field PG M5 | affected V22.01.10 custom | Not specified |
| ADP | Siemens | SIMATIC Field PG M6 | affected V26.01.13 custom | Not specified |
| ADP | Siemens | SIMATIC IPC127E | affected V27.01.09 custom | Not specified |
| ADP | Siemens | SIMATIC IPC227G | affected V28.01.04 custom | Not specified |
| ADP | Siemens | SIMATIC IPC277G | affected V28.01.04 custom | Not specified |
| ADP | Siemens | SIMATICIPC277G PRO | affected V28.01.04 custom | Not specified |
| ADP | Siemens | SIMATIC IPC327G | affected V28.01.04 custom | Not specified |
| ADP | Siemens | SIMATIC IPC377G | affected V28.01.04 custom | Not specified |
| ADP | Siemens | SIMATIC IPC427E | affected V21.01.17 custom | Not specified |
| ADP | Siemens | SIMATIC IPC477E | affected V21.01.17 custom | Not specified |
| ADP | Siemens | SIMATIC IPC477E PRO | affected V21.01.17 custom | Not specified |
| ADP | Siemens | SIMATIC IPC627E | affected V25.02.12 custom | Not specified |
| ADP | Siemens | SIMATIC IPC647E | affected V25.02.12 custom | Not specified |
| ADP | Siemens | SIMATIC IPC677E | affected V25.02.12 custom | Not specified |
| ADP | Siemens | SIMATIC IPC847E | affected V25.02.12 custom | Not specified |
| ADP | Siemens | SIMATIC ITP1000 | affected V23.01.10 custom | Not specified |
| ADP | Siemens | SIPLUS IPC427E | affected V21.01.17 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| cert-portal.siemens.com/productcert/html/ssa-306654.html | 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e | cert-portal.siemens.com | |
| CVE-2021-33625 InsydeH20 Vulnerability in NetApp Products | NetApp Product Security | af854a3a-2127-422b-91ae-364da2661108 | security.netapp.com | Third Party Advisory |
| Insyde Security Advisory 2022014 | Insyde Software | af854a3a-2127-422b-91ae-364da2661108 | www.insyde.com | Vendor Advisory |
| Insyde's Security Pledge | Insyde Software | af854a3a-2127-422b-91ae-364da2661108 | www.insyde.com | Vendor Advisory |
| www.kb.cert.org/vuls/id/796611 | af854a3a-2127-422b-91ae-364da2661108 | www.kb.cert.org | |
| cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf | af854a3a-2127-422b-91ae-364da2661108 | cert-portal.siemens.com | Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 590981 Siemens Industrial Products Insyde BIOS Multiple Vulnerabilities (SSA-306654)