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 SMM (issue 3 of 3).

CVSS v3.1

8.2 HIGHCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS v2.0

7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS

0.94% chance of exploitation in the next 30 days, 58th percentile

Published

2021-03-31

Updated

2024-08-03

Proof-of-concept exploits (1)

• https://www.youtube.com/watch?v=1H3AfaVyeuk

References

• CVE Record
• NVD entry

Related

• CVE-2021-26935
• CVE-2021-26947
• CVE-2021-26929
• CVE-2021-27065
• CVE-2021-26928
• CVE-2021-27094