Vulnerability in Asus Ux360ca
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).
EPSS: 0.009 (57.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Asus Ux360ca
- Asus Ux360ca_bios
- N/a — versions n/a
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-26943?
- CVE-2021-26943 is a high-severity vulnerability in Asus Ux360ca. CVSS score: 8.2/10. Published 2021-03-31.
- How severe is CVE-2021-26943?
- High severity. CVSS v3 base score is 8.2 out of 10.
- Is CVE-2021-26943 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.