Risk | High |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-43323 |
CWE-ID | CWE-264 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
UsbCoreDxe Hardware solutions / Drivers |
Vendor |
Security Bulletin
This security bulletin contains one high risk vulnerability.
EUVDB-ID: #VU60285
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-43323
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to the SMM callout issue. A remote attacker can hijack execution flow of a code running in System Management Mode and escalate privileges.
MitigationInstall updates from vendor's website.
Vulnerable software versionsUsbCoreDxe: before 5.5 05.51.45
External linkshttp://www.insyde.com/security-pledge
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.