Vulnerability · Published Sep 21, 2022 · Assigned by mitre

CVE-2022-35895

High 8.2

In plain English

A high-severity out-of-bounds write in the affected software. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).

Severity (CVSS 3.1)8.2High

Exploit odds (30 days)0.4%top 68.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. The FwBlockSericceSmm driver does not properly validate input parameters for a software SMI routine, leading to memory corruption of arbitrary addresses including SMRAM, and possible arbitrary code execution.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References

https://www.insyde.com/security-pledge x_refsource_MISC
https://binarly.io/advisories/BRLY-2022-024/index.html x_refsource_MISC
https://www.insyde.com/security-pledge/SA-2022033 x_refsource_MISC