High severity · published Apr 11, 2023
CVE-2023-22615
An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5
8.4
CVSS
0.2%
EPSS
No
On KEV
Description
An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. IHISI subfunction execution may corrupt SMRAM. An attacker can pass an address in the RCX save state register that overlaps SMRAM, thereby coercing an IHISI subfunction handler to overwrite private SMRAM.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IN
Insydeh2o · Insyde
05.37.03; 05.45.01; 05.53.01 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-22615
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-22615
Vendor Advisory
https://www.insyde.com/security-pledge
Vendor Advisory
https://www.insyde.com/security-pledge/SA-2023021
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