CVE-2024-55567

HIGH

Insyde InsydeH2O 5.4-5.4.05.47.01, 5.5-5.55.01, 5.6-5.62.01, 5.7-5.71.01 - Arbitrary Code Execution via SMM Call Out

Title source: llm
STIX 2.1

Description

Improper input validation was discovered in UsbCoreDxe in Insyde InsydeH2O kernel 5.4 before 05.47.01, 5.5 before 05.55.01, 5.6 before 05.62.01, and 5.7 before 05.71.01. The SMM module has an SMM call out vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.

References (1)

Core 1
Core References

Scores

CVSS v3 7.5
EPSS 0.0013
EPSS Percentile 3.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-20
Status published
Products (1)
insyde/insydeh2o 5.4 - 5.4.05.47.01
Published Jun 12, 2025
Tracked Since Feb 18, 2026