Vulnerability Monitor

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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).

Published

2021-03-31T20:15:14.130

Last Modified

2024-11-21T05:57:05.773

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.2 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	asus	ux360ca_bios	< 304	Yes
Hardware	asus	ux360ca	-	No

References

https://www.asus.com/support/FAQ/1045541/ Exploit, Vendor Advisory ([email protected])
https://www.youtube.com/watch?v=1H3AfaVyeuk Exploit, Third Party Advisory ([email protected])
https://www.asus.com/support/FAQ/1045541/ Exploit, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.youtube.com/watch?v=1H3AfaVyeuk Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)