Vulnerability Details : CVE-2021-41837
An issue was discovered in AhciBusDxe 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.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2021-41837
- cpe:2.3:o:siemens:simatic_ipc427e_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_ipc477e_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_itp1000_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_field_pg_m6_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_ipc127e_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_ipc227g_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_ipc277g_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_ipc327g_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_ipc377g_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_ipc627e_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_ipc647e_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_ipc677e_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_ipc847e_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
- cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
- cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
- cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
- cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
- cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-41837
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 18 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-41837
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST | |
|
8.2
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
1.5
|
6.0
|
NIST |
CWE ids for CVE-2021-41837
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-41837
-
https://www.insyde.com/security-pledge/SA-2022024
Insyde Security Advisory 2022024 | Insyde SoftwareVendor Advisory
-
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
Third Party Advisory
-
https://www.insyde.com/security-pledge
Insyde's Security Pledge | Insyde SoftwareVendor Advisory
-
https://security.netapp.com/advisory/ntap-20220222-0003/
CVE-2021-41837 InsydeH20 Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
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