Buffer overflow in Ami Aptio
CVE-2022-40262
A potential attacker can execute an arbitrary code at the time of the PEI phase 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: S3Resume2Pei SHA256: 7bb29f05534a8a1e010443213451425098faebd45948a4642db969b19d0253fc Module GUID: 89E549B0-7CFE-449D-9BA3-10D8B2312D71
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (24.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Ami Aptio — versions 5.x
- Ami Aptio V — versions 5.0
- Intel Server Board M10jnp2sb
- Intel Server Board M10jnp2sb Firmware
Weakness classification (CWE)
References
- www.ami.com/security-center/ (Vendor Advisory)
- www.binarly.io/advisories/BRLY-2022-009 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-40262?
- CVE-2022-40262 is a high-severity vulnerability in Ami Aptio, classified under Write-what-where Condition. CVSS score: 8.2/10. Published 2022-09-20.
- How severe is CVE-2022-40262?
- High severity. CVSS v3 base score is 8.2 out of 10.