2.7
LOW
CVSS 3.1
CVE-2026-9805
FMTSWriteUseIntelLib: FMTS SMM IHISI Buffer Overflow
Overview
Description
SMM IHISI command handler, FMTSWriteUseIntelLib, for FMTS command 0x32, read and write data without checking buffer size and could cause buffer overflow.
Details
INFO
Published Date :
Aug. 26, 2026, 1 a.m.
Last Modified :
Aug. 26, 2026, 1 a.m.
Remotely Exploit :
No
Source :
Insyde
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | LOW | 8338d8cb-57f7-4252-abc0-96fd13e98d21 |
Solution
Patch or update the SMM IHISI command handler to perform buffer size checks.
- Apply vendor patches for SMM IHISI command handler.
- Update the SMM IHISI command handler firmware.
- Validate buffer sizes before reading or writing data.
- Implement robust bounds checking in FMTSWriteUseIntelLib.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-9805 vulnerability anywhere in the article.
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.