🛡️ CVE-2022-24350 — insydeh2o

🟡 CVSS 5.5 — Medium ✅ No Known Exploit CWE-120 NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. IHISI function 0x17 verifies that the output buffer lies within the command buffer but does not verify that output data does not go beyond the end of the command buffer. In particular, the GetFlashTable function is called directly on the Command Buffer before the DataSize is check, leading to possible circumstances where the data immediately following the command buffer could be destroyed before returning a buffer size error.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability none.

Weakness class

CVE-2022-24350 is classified as CWE-120: Classic Buffer Overflow. Input is copied into a fixed-size buffer without a length check, overwriting memory past the end of it.

Affected software

CVE-2022-24350 is recorded against 1 package.

  • insydeh2o (from 5.0 up to 5.5)

Timeline and source

Published on 12 April 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.insyde.com
www.insyde.com
www.insyde.com
www.insyde.com

Details

Severity MEDIUM
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE CWE-120
Public Exploit ✅ No
Source NVD
Published 2023-04-12
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
insydeh2o 5.0 5.5

Similar Threats

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