1. Home
  2. CVE Database
  3. CVE-2021-26943
HIGH · 8.2

CVE-2021-26943

The UX360CA BIOS through 303 on ASUS laptops allow an attacker (with the ring 0 privilege) to overwrite nearly arbitrary physical memory locations, including SMRAM, and execute arbitrary code in the S...

Vulnerability Description

The UX360CA BIOS through 303 on ASUS laptops allow an attacker (with the ring 0 privilege) to overwrite nearly arbitrary physical memory locations, including SMRAM, and execute arbitrary code in the SMM (issue 3 of 3).

CVSS Score

8.2

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
AsusUx360Ca Bios< 304
AsusUx360Ca-

References

FAQ

What is CVE-2021-26943?

CVE-2021-26943 is a vulnerability with a CVSS score of 8.2 (HIGH). The UX360CA BIOS through 303 on ASUS laptops allow an attacker (with the ring 0 privilege) to overwrite nearly arbitrary physical memory locations, including SMRAM, and execute arbitrary code in the S...

How severe is CVE-2021-26943?

CVE-2021-26943 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-26943?

Check the references section above for vendor advisories and patch information. Affected products include: Asus Ux360Ca Bios, Asus Ux360Ca.