Medium severity · published Jun 12, 2025
CVE-2024-55567
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
6.7
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IN
Insydeh2o · Insyde
5.4 before 5.4.05.47.01; 5.5 before 5.5.05.55.01; 5.6 before 5.6.05.62.01; 5.7 before 5.7.05.71.01 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-55567
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-55567
Vendor Advisory
https://www.insyde.com/security-pledge/sa-2024018/
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