High severity · published Sep 23, 2022
CVE-2022-35893
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5
8.2
CVSS
0.2%
EPSS
No
On KEV
Description
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An SMM memory corruption vulnerability in the FvbServicesRuntimeDxe driver allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
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)0.2% · higher than 14% 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-2022-35893
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-35893
Third Party Advisory
https://binarly.io/advisories/BRLY-2022-026/index.html
Vendor Advisory
https://www.insyde.com/security-pledge
Vendor Advisory
https://www.insyde.com/security-pledge/SA-2022035
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