CVE-2021-26943

HIGH

ASUS UX360CA BIOS <303 - Memory Corruption

Title source: llm
STIX 2.1

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).

Exploits (1)

nomisec WORKING POC 144 stars
by tandasat · poc
https://github.com/tandasat/SmmExploit

References (2)

Core 2
Core References
Exploit, Vendor Advisory x_refsource_confirm
https://www.asus.com/support/FAQ/1045541/
Exploit, Third Party Advisory x_refsource_misc
https://www.youtube.com/watch?v=1H3AfaVyeuk

Scores

CVSS v3 8.2
EPSS 0.0469
EPSS Percentile 89.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Details

Status published
Products (1)
asus/ux360ca_bios < 304
Published Mar 31, 2021
Tracked Since Feb 18, 2026