Vulnerability Intelligence Report
CVE-2023-22615
An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. IHISI subfunction execution may corrupt SMRAM. An attacker can pass an address in the RCX save state register that overlaps SMRAM, thereby coercing an IHISI subfunction handler to overwrite private SMRAM.
No Active Exploit Signals
CVSS Base Score
8.4
HIGH
Exploitability:2.1
Impact Score:5.8
EPSS Probability:0.20%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-787 ↗CWE-787 Out-of-bounds Write
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| insyde | insydeh2o | 05.37.03, 05.45.01, 05.53.01 |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.204%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2023-01-04T00:00:00 |
| Published | 2023-04-11T00:00:00 |
| Last Updated | 2025-02-11T20:11:22 |
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