How severe is CVE-2022-28806?

CVE-2022-28806 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-28806 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28806?

CVE-2022-28806 primarily affects Fujitsu Lifebook A3510 Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-28806?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-28806 published?

CVE-2022-28806 was published on 2022-05-04 and last updated on 2026-06-17.

CVE-2022-28806

CVE-2022-28806 is a high-severity vulnerability in Fujitsu Lifebook A3510 Firmware with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Fujitsu Lifebook A3510 Firmware
Published: 2022-05-04
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-28806?: 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.
How severe is CVE-2022-28806?: CVE-2022-28806 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-28806 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28806?: CVE-2022-28806 primarily affects Fujitsu Lifebook A3510 Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-28806?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-28806 published?: CVE-2022-28806 was published on 2022-05-04 and last updated on 2026-06-17.

References

Affected products (12)

cpe:2.3:o:fujitsu:lifebook_a3510_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:fujitsu:lifebook_u9310_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:fujitsu:lifebook_u7511_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:fujitsu:lifebook_u7411_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:fujitsu:lifebook_u7311_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:fujitsu:lifebook_u9311_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:fujitsu:lifebook_e5510_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:fujitsu:lifebook_u7510_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:fujitsu:lifebook_u7410_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:fujitsu:lifebook_u7310_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:fujitsu:lifebook_e459_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:fujitsu:lifebook_e449_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Fujitsu Lifebook A3510 Firmware

CVE-2023-40238 — Medium (CVSS 5.5): A LogoFAIL issue was discovered in BmpDecoderDxe in Insyde InsydeH2O with kernel 5.2 before 05.28.47, 5.3 before…

All CVEs affecting Fujitsu Lifebook A3510 Firmware →

Other CWE-787 (Out-of-bounds Write) vulnerabilities

CVE-2026-42369 — Critical (CVSS 10.0): GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other…
CVE-2026-4746 — Critical (CVSS 10.0): Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is…
CVE-2025-43300 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS…
CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
CVE-2024-42479 — Critical (CVSS 10.0): llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause…
CVE-2024-39791 — Critical (CVSS 10.0): Stack-based buffer overflow vulnerabilities affecting Vonets industrial wifi bridge relays and wifi bridge…

Browse all CWE-787 (Out-of-bounds Write) vulnerabilities →