CVE-2022-35894

6.0 MEDIUM 0.3% exploit odds Fix listed

What it is

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. The SMI handler for the FwBlockServiceSmm driver uses an untrusted pointer as the location to copy data to an attacker-specified buffer, leading to information disclosure.

At a glance

Exploitability: Can be exploited locally on the machine with an admin-level account. High risk of data exposure.
Exploit odds: 0.3% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2022-09-22 18:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 04:52 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.3% in the next 30 days (EPSS).
Severity: 6.0 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2022-09-22 18:15 UTC
Last modified: 2026-06-17 04:52 UTC
Exploit probability: 0.3% · EPSS, next 30 days
Weakness: CWE-401
Record status: Modified

Affected

Insyde insydeh2o < 05.09.37
Insyde insydeh2o < 5.17.37
Insyde insydeh2o < 05.27.29
Insyde insydeh2o < 05.36.29
Insyde insydeh2o < 05.44.29
Insyde insydeh2o < 05.52.29

Attack profile CVSS 3.1 · 6.0

Attack vector: Local
Complexity: Low
Privileges needed: High
User interaction: None
Scope: Changed
Confidentiality: High
Integrity: None
Availability: None

Raw vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2022-35894.md and follow it. Check whether this project is affected by CVE-2022-35894. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record