CVE-2021-41842
Last modified
CVE-2021-41842 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in AtaLegacySmm in the kernel 5.0 before 05.08.46, 5.1 before 05.16.46, 5.2 before 05.26.46, 5.3 before 05.35.46, 5.4 before 05.43.46, and 5.5 before 05.51.45 in Insyde InsydeH2O. Code execution can occur because the SMI handler lacks a CommBuffer check.. EPSS estimates a 1.53% chance of exploitation in the next 30 days.
Description
An issue was discovered in AtaLegacySmm in the kernel 5.0 before 05.08.46, 5.1 before 05.16.46, 5.2 before 05.26.46, 5.3 before 05.35.46, 5.4 before 05.43.46, and 5.5 before 05.51.45 in Insyde InsydeH2O. Code execution can occur because the SMI handler lacks a CommBuffer check.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Insyde | Insydeh2o | >= 5.0, < 05.08.46 |
| Insyde | Insydeh2o | >= 5.1, < 05.16.46 |
| Insyde | Insydeh2o | >= 5.2, < 05.26.46 |
| Insyde | Insydeh2o | >= 5.3, < 05.35.46 |
| Insyde | Insydeh2o | > 5.4, < 05.43.46 |
| Insyde | Insydeh2o | >= 5.5, < 05.51.45 |
References
- https://security.netapp.com/advisory/ntap-20220223-0002/Third Party Advisory
- https://www.insyde.com/security-pledgeVendor Advisory
- https://security.netapp.com/advisory/ntap-20220223-0002/Third Party Advisory
- https://www.insyde.com/security-pledgeVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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- 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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