CVE-2021-41839
Last modified
CVE-2021-41839 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. An issue was discovered in NvmExpressDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. Because of an Untrusted Pointer Dereference that causes SMM memory corruption, an attacker may be able to write fixed or predictable data to SMRAM. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
Description
An issue was discovered in NvmExpressDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. Because of an Untrusted Pointer Dereference that causes SMM memory corruption, an attacker may be able to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
Metrics
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Insyde | Insydeh2o | >= 5.1, < 5.16.25 |
| Insyde | Insydeh2o | >= 5.2, < 5.26.25 |
| Insyde | Insydeh2o | >= 5.3, < 5.35.25 |
| Insyde | Insydeh2o | >= 5.4, < 5.43.25 |
| Insyde | Insydeh2o | >= 5.5, < 5.51.25 |
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfThird Party Advisory
- https://security.netapp.com/advisory/ntap-20220217-0016/Third Party Advisory
- https://www.insyde.com/security-pledgeVendor Advisory
- https://www.insyde.com/security-pledge/SA-2022020Vendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfThird Party Advisory
- https://security.netapp.com/advisory/ntap-20220217-0016/Third Party Advisory
- https://www.insyde.com/security-pledgeVendor Advisory
- https://www.insyde.com/security-pledge/SA-2022020Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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