CVE & CISA-KEV Catalog

CVE-2022-28806

HIGH
7.8
CVSS v3
NVD

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.

CWE-787Out-of-bounds Write

How to fix

Remediation Available
lifebook a3510 firmwareNVD
Affected:< 1.09Fixed in:1.09CVE-2022-28806derived from NVD
lifebook e449 firmwareNVD
Affected:< 1.09Fixed in:1.09CVE-2022-28806derived from NVD
lifebook e459 firmwareNVD
Affected:< 1.09Fixed in:1.09CVE-2022-28806derived from NVD
lifebook e5510 firmwareNVD
Affected:< 2.23Fixed in:2.23CVE-2022-28806derived from NVD
lifebook u7310 firmwareNVD
Affected:< 2.13Fixed in:2.13CVE-2022-28806derived from NVD
lifebook u7311 firmwareNVD
Affected:< 2.30Fixed in:2.30CVE-2022-28806derived from NVD
lifebook u7410 firmwareNVD
Affected:< 2.19Fixed in:2.19CVE-2022-28806derived from NVD
lifebook u7411 firmwareNVD
Affected:< 2.30Fixed in:2.30CVE-2022-28806derived from NVD
lifebook u7510 firmwareNVD
Affected:< 2.19Fixed in:2.19CVE-2022-28806derived from NVD
lifebook u7511 firmwareNVD
Affected:< 2.30Fixed in:2.30CVE-2022-28806derived from NVD
lifebook u9310 firmwareNVD
Affected:< 2.17Fixed in:2.17CVE-2022-28806derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.45%probability of exploitation in 30 days
36thpercentile

Low risk: more likely to be exploited than 36% of all known CVEs.

References

Exploit1
Third-Party Advisory1
Other references1

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2025-22457Critical9.0100%KEV + RansomFix
CVE-2025-0282Critical9.0100%KEV + Ransom-
CVE-2015-3113Critical9.8100%KEVFix
CVE-2021-20038Critical9.8100%KEV + Ransom-
CVE-2023-4863High8.8100%KEVFix
CVE-2020-16040Medium6.5100%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-04.