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.
AI analysis not yet available
Plain-English explanation, risk summary, and remediation steps will appear here once AI analysis is complete.
No Fix Known
No patch has been released yet. Apply workarounds or mitigations where available.
| Vendor | Product | Versions | Fixed In |
|---|---|---|---|
| fujitsu | lifebook_a3510_firmware | 1.09 | - |
| fujitsu | lifebook_u9310_firmware | 2.17 |
Published
CVE disclosed publicly
Last Modified
Most recent update
Indexed to CVEInsight
Added to this platform
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
12
Affected Products
9
References
fujitsu / lifebook_a3510_firmware
| - |
| fujitsu | lifebook_u7511_firmware | 2.30 | - |
| fujitsu | lifebook_u7411_firmware | 2.30 | - |
| fujitsu | lifebook_u7311_firmware | 2.30 | - |
| fujitsu | lifebook_u9311_firmware | 2.33 | - |
| fujitsu | lifebook_e5510_firmware | 2.23 | - |
| fujitsu | lifebook_u7510_firmware | 2.19 | - |
| fujitsu | lifebook_u7410_firmware | 2.19 | - |
| fujitsu | lifebook_u7310_firmware | 2.13 | - |
| fujitsu | lifebook_e459_firmware | 1.09 | - |
| fujitsu | lifebook_e449_firmware | 1.09 | - |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability
Impact