High severity · published Sep 21, 2022
CVE-2022-35895
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5
8.2
CVSS
0.4%
EPSS
No
On KEV
Description
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. The FwBlockSericceSmm driver does not properly validate input parameters for a software SMI routine, leading to memory corruption of arbitrary addresses including SMRAM, and possible arbitrary code execution.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IN
Insydeh2o · Insyde
5.0 before 05.09.37; 5.1 before 05.17.37; 5.2 before 05.27.29; 5.3 before 05.36.29; 5.4 before 05.44.29; 5.5 before 05.52.29 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-35895
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-35895
Exploit
https://binarly.io/advisories/BRLY-2022-024/index.html
Vendor Advisory
https://www.insyde.com/security-pledge
Vendor Advisory
https://www.insyde.com/security-pledge/SA-2022033
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