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).

• https://www.asus.com/support/FAQ/1045541/Exploit, Vendor Advisory
• https://www.youtube.com/watch?v=1H3AfaVyeukExploit, Third Party Advisory
• https://www.asus.com/support/FAQ/1045541/Exploit, Vendor Advisory
• https://www.youtube.com/watch?v=1H3AfaVyeukExploit, Third Party Advisory

Published

Mar 31, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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