An SMM memory corruption vulnerability in the SMM driver (SMRAM write) in CsmInt10HookSmm in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to send arbitrary data to SMM which could lead to privilege escalation.
CVE Status: Modified
Attribute | Value |
---|---|
Attack Complexity | LOW |
Attack Vector | LOCAL |
Availability Impact | HIGH |
Base Score | 7.8 |
Base Severity | HIGH |
Confidentiality Impact | HIGH |
Integrity Impact | HIGH |
Privileges Required | LOW |
Scope | UNCHANGED |
User Interaction | NONE |
Vector String | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Exploitability Score | 1.8 |
Impact Score | 5.9 |
Source | [email protected] |
Type | Primary |