Vulnerability Details : CVE-2022-26873
Potential exploit
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: PlatformInitAdvancedPreMem SHA256: 644044fdb8daea30a7820e0f5f88dbf5cd460af72fbf70418e9d2e47efed8d9b Module GUID: EEEE611D-F78F-4FB9-B868-55907F169280 This issue affects: AMI Aptio 5.x.
Vulnerability category: Memory Corruption
Products affected by CVE-2022-26873
- cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc510_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc710_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:ami:aptio_v:5.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-26873
0.02%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 4 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-26873
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.2
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
1.5
|
6.0
|
NIST |
CWE ids for CVE-2022-26873
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A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).Assigned by: cret@cert.org (Secondary)
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The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-26873
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https://www.binarly.io/advisories/BRLY-2022-027
[BRLY-2022-027] The stack buffer overflow vulnerability leads to arbitrary code execution during PEI phase on Intel platform.Exploit;Third Party Advisory
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https://www.ami.com/security-center/
AMI Firmware Security TeamVendor Advisory
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https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.html
INTEL-SA-00712Not Applicable;Third Party Advisory
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