CVEvulnerability
CVE-2021-41839
8.2 HIGH
Official page ↗
- Status
- Modified
- Published
- 2022-02-03
- Last modified
- 2026-08-11
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.2 HIGH — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 4.6 MEDIUM — AV:L/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-119
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.
Affected configurations
• 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)
Related
Weakness · CWE (1)
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220217-0016/ Third Party Advisory
- https://www.insyde.com/security-pledge Vendor Advisory
- https://www.insyde.com/security-pledge/SA-2022020 Vendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220217-0016/ Third Party Advisory
- https://www.insyde.com/security-pledge Vendor Advisory
- https://www.insyde.com/security-pledge/SA-2022020 Vendor Advisory
- https://www.kb.cert.org/vuls/id/796611 www.kb.cert.org
- https://cert-portal.siemens.com/productcert/html/ssa-306654.html cert-portal.siemens.com