CVE-2022-28806
7.8 · HIGHOverview
CVE-2022-28806 is a high-severity vulnerability affecting fujitsu lifebook_a3510_firmware. It was published on May 4, 2022 and has a CVSS 3.1 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from fujitsu. Update lifebook_a3510_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| fujitsu | lifebook_a3510_firmware | >= 0, < 1.09 | Affected |
| fujitsu | lifebook_u9310_firmware | >= 0, < 2.17 | Affected |
| fujitsu | lifebook_u7511_firmware | >= 0, < 2.30 | Affected |
| fujitsu | lifebook_u7411_firmware | >= 0, < 2.30 | Affected |
| fujitsu | lifebook_u7311_firmware | >= 0, < 2.30 | Affected |
| fujitsu | lifebook_u9311_firmware | 0 | Affected |
| fujitsu | lifebook_e5510_firmware | >= 0, < 2.23 | Affected |
| fujitsu | lifebook_u7510_firmware | >= 0, < 2.19 | Affected |
| fujitsu | lifebook_u7410_firmware | >= 0, < 2.19 | Affected |
| fujitsu | lifebook_u7310_firmware | >= 0, < 2.13 | Affected |
References
Frequently Asked Questions
What is CVE-2022-28806?
CVE-2022-28806 is a high-severity vulnerability affecting fujitsu lifebook_a3510_firmware. It was published on May 4, 2022 and has a CVSS 3.1 base score of 7.8 (HIGH).
How severe is CVE-2022-28806?
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2022-28806?
Check the references section for vendor advisories and patches from fujitsu. Update lifebook_a3510_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2022-28806?
CyberStrike's AI-powered security agents can automatically detect CVE-2022-28806 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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