CVE-2021-41839
Severity Score
8.2
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Se ha descubierto un problema en NvmExpressDxe en el kernel versión 5.0 hasta la versión 5.5 de InsydeH2O. Debido a una desviación de puntero no fiable que provoca la corrupción de la memoria de SMM, un atacante podría ser capaz de escribir datos fijos o predecibles en la SMRAM. La explotación de este problema podría llevar a escalar privilegios a SMM
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-10-01 CVE Reserved
- 2022-02-03 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
References (4)
| URL | Tag | Source |
|---|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf | Third Party Advisory |
|
| https://security.netapp.com/advisory/ntap-20220217-0016 | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.insyde.com/security-pledge | 2023-08-08 | |
| https://www.insyde.com/security-pledge/SA-2022020 | 2023-08-08 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Insyde Search vendor "Insyde" | Insydeh2o Search vendor "Insyde" for product "Insydeh2o" | >= 5.1 < 5.16.25 Search vendor "Insyde" for product "Insydeh2o" and version " >= 5.1 < 5.16.25" | - |
Affected
| ||||||
| Insyde Search vendor "Insyde" | Insydeh2o Search vendor "Insyde" for product "Insydeh2o" | >= 5.2 < 5.26.25 Search vendor "Insyde" for product "Insydeh2o" and version " >= 5.2 < 5.26.25" | - |
Affected
| ||||||
| Insyde Search vendor "Insyde" | Insydeh2o Search vendor "Insyde" for product "Insydeh2o" | >= 5.3 < 5.35.25 Search vendor "Insyde" for product "Insydeh2o" and version " >= 5.3 < 5.35.25" | - |
Affected
| ||||||
| Insyde Search vendor "Insyde" | Insydeh2o Search vendor "Insyde" for product "Insydeh2o" | >= 5.4 < 5.43.25 Search vendor "Insyde" for product "Insydeh2o" and version " >= 5.4 < 5.43.25" | - |
Affected
| ||||||
| Insyde Search vendor "Insyde" | Insydeh2o Search vendor "Insyde" for product "Insydeh2o" | >= 5.5 < 5.51.25 Search vendor "Insyde" for product "Insydeh2o" and version " >= 5.5 < 5.51.25" | - |
Affected
| ||||||