CVE-2022-40246
Last modified
CVE-2022-40246 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. A potential attacker can write one byte by arbitrary address at the time of the PEI phase (only during S3 resume boot mode) and influence the subsequent boot stages. This can lead to the mitigations bypassing, physical memory contents disclosure, discovery of any secrets from any Virtual Machines (VMs) and bypassing memory isolation and confidential computing boundaries. EPSS estimates a 0.46% chance of exploitation in the next 30 days.
Description
A potential attacker can write one byte by arbitrary address at the time of the PEI phase (only during S3 resume boot mode) and influence the subsequent boot stages. This can lead to the mitigations bypassing, physical memory contents disclosure, discovery of any secrets from any Virtual Machines (VMs) and bypassing memory isolation and confidential computing boundaries. Additionally, an attacker can build a payload which can be injected into the SMRAM memory. This issue affects: Module name: SbPei SHA256: d827182e5f9b7a9ff0b9d3e232f7cfac43b5237e2681e11f005be627a49283a9 Module GUID: c1fbd624-27ea-40d1-aa48-94c3dc5c7e0d
Metrics
CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Intel | Nuc M15 Laptop Kit Lapbc510 Firmware | 0072 |
| Intel | Nuc M15 Laptop Kit Lapbc710 Firmware | 0072 |
References
- https://www.ami.com/security-center/Vendor Advisory
- https://www.binarly.io/advisories/BRLY-2022-014Exploit, Third Party Advisory
- https://www.ami.com/security-center/Vendor Advisory
- https://www.binarly.io/advisories/BRLY-2022-014Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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