// For flags

CVE-2021-41838

 

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 SdHostDriver in the kernel 5.0 through 5.5 in Insyde InsydeH2O. There is an SMM callout that allows an attacker to access the System Management Mode and execute arbitrary code. This occurs because of a Numeric Range Comparison Without a Minimum Check.

Se ha descubierto un problema en SdHostDriver en el kernel versión 5.0 hasta la versión 5.5 en InsydeH2O. Hay una llamada SMM que permite a un atacante acceder al modo de gestión del sistema y ejecutar código arbitrario. Esto ocurre debido a una comparación de rango numérico sin una comprobación mínima.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* 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
  • 2023-09-24 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
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Siemens
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Simatic Field Pg M5 Firmware
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*-
Affected
in Siemens
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Simatic Field Pg M5
Search vendor "Siemens" for product "Simatic Field Pg M5"
--
Safe
Siemens
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Simatic Field Pg M6 Firmware
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*-
Affected
in Siemens
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Simatic Field Pg M6
Search vendor "Siemens" for product "Simatic Field Pg M6"
--
Safe
Siemens
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Simatic Ipc127e Firmware
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*-
Affected
in Siemens
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Simatic Ipc127e
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--
Safe
Siemens
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Simatic Ipc227g Firmware
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*-
Affected
in Siemens
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Simatic Ipc227g
Search vendor "Siemens" for product "Simatic Ipc227g"
--
Safe
Siemens
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Simatic Ipc277g Firmware
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*-
Affected
in Siemens
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Simatic Ipc277g
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--
Safe
Siemens
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Simatic Ipc327g Firmware
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*-
Affected
in Siemens
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Simatic Ipc327g
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--
Safe
Siemens
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Simatic Ipc377g Firmware
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*-
Affected
in Siemens
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Simatic Ipc377g
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--
Safe
Siemens
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Simatic Ipc427e Firmware
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*-
Affected
in Siemens
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Simatic Ipc427e
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--
Safe
Siemens
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Simatic Ipc477e Firmware
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*-
Affected
in Siemens
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Simatic Ipc477e
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--
Safe
Siemens
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Simatic Ipc627e Firmware
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*-
Affected
in Siemens
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Simatic Ipc627e
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--
Safe
Siemens
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Simatic Ipc647e Firmware
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*-
Affected
in Siemens
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Simatic Ipc647e
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--
Safe
Siemens
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Simatic Ipc677e Firmware
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*-
Affected
in Siemens
Search vendor "Siemens"
Simatic Ipc677e
Search vendor "Siemens" for product "Simatic Ipc677e"
--
Safe
Siemens
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Simatic Ipc847e Firmware
Search vendor "Siemens" for product "Simatic Ipc847e Firmware"
*-
Affected
in Siemens
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Simatic Ipc847e
Search vendor "Siemens" for product "Simatic Ipc847e"
--
Safe
Siemens
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Simatic Itp1000 Firmware
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*-
Affected
in Siemens
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Simatic Itp1000
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--
Safe
Insyde
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Insydeh2o
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>= 5.1 < 5.16.42
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-
Affected
Insyde
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Insydeh2o
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>= 5.2 < 5.26.42
Search vendor "Insyde" for product "Insydeh2o" and version " >= 5.2 < 5.26.42"
-
Affected
Insyde
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Insydeh2o
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>= 5.3 < 5.35.42
Search vendor "Insyde" for product "Insydeh2o" and version " >= 5.3 < 5.35.42"
-
Affected
Insyde
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Insydeh2o
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>= 5.4 < 5.43.42
Search vendor "Insyde" for product "Insydeh2o" and version " >= 5.4 < 5.43.42"
-
Affected
Insyde
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Insydeh2o
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>= 5.5 < 5.51.42
Search vendor "Insyde" for product "Insydeh2o" and version " >= 5.5 < 5.51.42"
-
Affected