Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-41840 |
CWE-ID | CWE-453 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
SdHostDriver Hardware solutions / Drivers |
Vendor |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU60267
Risk: Medium
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-41840
CWE-ID:
CWE-453 - Insecure Default Variable Initialization
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to the SMM (System Management Mode) branch that registers a SWSMI handler does not sufficiently check or validate the allocated table variable EFI_BOOT_SERVICES. A remote authenticated attacker can overwrite the LocateProtocol or Freepool and execute arbitrary code on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsSdHostDriver: before 5.4: 05.40.35
External linkshttp://www.insyde.com/security-pledge
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.