Description
An issue was discovered on certain Fujitsu LIEFBOOK devices (A3510, U9310, U7511/U7411/U7311, U9311, E5510/E5410, U7510/U7410/U7310, E459/E449) with BIOS versions before v1.09 (A3510), v2.17 (U9310), v2.30 (U7511/U7411/U7311), v2.33 (U9311), v2.23 (E5510), v2.19 (U7510/U7410), v2.13 (U7310), and v1.09 (E459/E449). The FjGabiFlashCoreAbstractionSmm driver registers a Software System Management Interrupt (SWSMI) handler that is not sufficiently validated to ensure that the CommBuffer (or any other communication buffer's nested contents) are not pointing to SMRAM contents. A potential attacker can therefore write fixed data to SMRAM, which could lead to data corruption inside this memory (e.g., change the SMI handler's code or modify SMRAM map structures to break input pointer validation for other SMI handlers). Thus, the attacker could elevate privileges from ring 0 to ring -2 and execute arbitrary code in SMM.
Published: 2022-05-04
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2022-33244 An issue was discovered on certain Fujitsu LIEFBOOK devices (A3510, U9310, U7511/U7411/U7311, U9311, E5510/E5410, U7510/U7410/U7310, E459/E449) with BIOS versions before v1.09 (A3510), v2.17 (U9310), v2.30 (U7511/U7411/U7311), v2.33 (U9311), v2.23 (E5510), v2.19 (U7510/U7410), v2.13 (U7310), and v1.09 (E459/E449). The FjGabiFlashCoreAbstractionSmm driver registers a Software System Management Interrupt (SWSMI) handler that is not sufficiently validated to ensure that the CommBuffer (or any other communication buffer's nested contents) are not pointing to SMRAM contents. A potential attacker can therefore write fixed data to SMRAM, which could lead to data corruption inside this memory (e.g., change the SMI handler's code or modify SMRAM map structures to break input pointer validation for other SMI handlers). Thus, the attacker could elevate privileges from ring 0 to ring -2 and execute arbitrary code in SMM.
History

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

Type Values Removed Values Added
References

Subscriptions

Fujitsu Lifebook A3510 Lifebook A3510 Firmware Lifebook E449 Lifebook E449 Firmware Lifebook E459 Lifebook E459 Firmware Lifebook E5510 Lifebook E5510 Firmware Lifebook U7310 Lifebook U7310 Firmware Lifebook U7311 Lifebook U7311 Firmware Lifebook U7410 Lifebook U7410 Firmware Lifebook U7411 Lifebook U7411 Firmware Lifebook U7510 Lifebook U7510 Firmware Lifebook U7511 Lifebook U7511 Firmware Lifebook U9310 Lifebook U9310 Firmware Lifebook U9311 Lifebook U9311 Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-11-04T19:13:03.588Z

Reserved: 2022-04-08T00:00:00.000Z

Link: CVE-2022-28806

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-05-04T15:15:13.083

Modified: 2025-11-04T20:16:04.443

Link: CVE-2022-28806

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses