CVE-2023-27471

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. UEFI implementations do not correctly protect and validate information contained in the 'MeSetup' UEFI variable. On some systems, this variable can be overwritten using operating system APIs. Exploitation of this vulnerability could potentially lead to denial of service for the platform.

Se descubrió un problema en Insyde InsydeH2O con kernel 5.0 a 5.5. Las implementaciones UEFI no protegen ni validan correctamente la información contenida en la variable UEFI "MeSetup". En algunos sistemas, esta variable puede sobrescribirse utilizando las API del sistema operativo. La explotación de esta vulnerabilidad podría conducir potencialmente a la denegación de servicio de la plataforma.

*Credits: N/A

CVSS Scores

NISTv3.1 5.5

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-03-01 CVE Reserved
2023-08-18 CVE Published
2023-08-19 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.insyde.com/security-pledge/SA-2023036	2023-08-24

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"				5.0 Search vendor "Insyde" for product "Insydeh2o" and version "5.0"		-		Affected
Insyde Search vendor "Insyde"		Insydeh2o Search vendor "Insyde" for product "Insydeh2o"				5.1 Search vendor "Insyde" for product "Insydeh2o" and version "5.1"		-		Affected
Insyde Search vendor "Insyde"		Insydeh2o Search vendor "Insyde" for product "Insydeh2o"				5.2 Search vendor "Insyde" for product "Insydeh2o" and version "5.2"		-		Affected
Insyde Search vendor "Insyde"		Insydeh2o Search vendor "Insyde" for product "Insydeh2o"				5.3 Search vendor "Insyde" for product "Insydeh2o" and version "5.3"		-		Affected
Insyde Search vendor "Insyde"		Insydeh2o Search vendor "Insyde" for product "Insydeh2o"				5.4 Search vendor "Insyde" for product "Insydeh2o" and version "5.4"		-		Affected
Insyde Search vendor "Insyde"		Insydeh2o Search vendor "Insyde" for product "Insydeh2o"				5.5 Search vendor "Insyde" for product "Insydeh2o" and version "5.5"		-		Affected