AI Threat Alert
CVE-2021-33625
AWAITING NVDAn 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...
Full CISO analysis pending enrichment.
What systems are affected?
| Package | Ecosystem | Vulnerable Range | Patched |
|---|---|---|---|
| n/a | — | — | No patch |
Do you use n/a? You're affected.
How severe is it?
What should I do?
No patch available
Monitor for updates. Consider compensating controls or temporary mitigations.
Which compliance frameworks are affected?
Compliance analysis pending. Sign in for full compliance mapping when available.
Frequently Asked Questions
What is CVE-2021-33625?
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.
Is CVE-2021-33625 actively exploited?
No confirmed active exploitation of CVE-2021-33625 has been reported, but organizations should still patch proactively.
How to fix CVE-2021-33625?
No patch is currently available. Monitor vendor advisories for updates.
What is the CVSS score for CVE-2021-33625?
No CVSS score has been assigned yet.
What are the technical details?
Original Advisory
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.
References
- cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf x_refsource_CONFIRM
- security.netapp.com/advisory/ntap-20220222-0004/ x_refsource_CONFIRM
- insyde.com/security-pledge x_refsource_MISC
- insyde.com/security-pledge/SA-2022014 x_refsource_MISC