An issue was discovered in UsbCoreDxe in Insyde InsydeH2O with kernel 5.5 before 05.51.45, 5.4 before 05.43.45, 5.3 before 05.35.45, 5.2 before 05.26.45, 5.1 before 05.16.45, and 5.0 before 05.08.45. An SMM callout vulnerability allows an attacker to hijack execution flow of code running in System Management Mode. Exploiting this issue could lead to escalating privileges to SMM.
History

Tue, 04 Nov 2025 20:30:00 +0000

Type Values Removed Values Added
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2022-02-03T01:50:01.000Z

Updated: 2025-11-04T19:12:44.192Z

Reserved: 2021-11-03T00:00:00.000Z

Link: CVE-2021-43323

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-02-03T02:15:07.427

Modified: 2025-11-04T20:16:02.267

Link: CVE-2021-43323

cve-icon Redhat

No data.