CVE-2025-4277
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-08-13
Last updated on: 2025-08-13
Assigner: Insyde
Description
Description
Tcg2Smm has a vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| intel | tatlow | 05.42.52.0029 |
| intel | arrowlake_hu | 05.55.17.0017 |
| intel | idaville | 05.47.21.0067 |
| intel | arrowlake_shx | 05.55.17.0028 |
| intel | cometlake_s | 05.34.19.0050 |
| intel | twinlake | 05.44.45.0027 |
| intel | eagle_stream | 05.47.31.1049 |
| intel | amstonlake | 05.47.21.0008 |
| intel | rapterlake | 05.47.21.0055 |
| intel | cedarisland | 05.42.11.0031 |
| intel | alderlake | 05.47.21.2055 |
| intel | mehlow | 05.23.04.0054 |
| intel | whiskeylake | 05.23.45.0032 |
| intel | alder_lake_n | 05.47.21.0013 |
| intel | whitley | 05.42.23.0078 |
| insyde | insydeh2o_firmware | * |
| intel | tigerlake_up3_h | 05.43.12.0062 |
| intel | birch_stream | 05.62.16.0082 |
| intel | pantherlake | 05.71.04.0012 |
| intel | meteorlake | 05.55.17.0036 |
| intel | elkhartlake | 05.47.21.0028 |
| intel | lunarlake | 05.62.21.0033 |
| intel | purley | 05.21.51.0064 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-20 | The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in Tcg2Smm allows an attacker to write arbitrary memory inside SMRAM (System Management RAM) and execute arbitrary code at the System Management Mode (SMM) level.
How can this vulnerability impact me? :
An attacker exploiting this vulnerability can gain high-level control by executing arbitrary code in SMM, potentially leading to complete system compromise, including confidentiality, integrity, and availability of the system.
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