6.3

CVE-2023-47252: insyde kernel Out-of-bounds Write

CVSS: 6.3v3.1MediumAnalyzed
Published 26-04-2024Last modified 20-11-2024
Open JSON

Vulnerability summary

CVE-2023-47252 is a medium (CVSS 6.3) Out-of-bounds Write vulnerability in insyde kernel. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 3.5% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.15%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 26-04-2024
    PublishedVulnerability first disclosed.
  2. 20-11-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in PnpSmm in Insyde InsydeH2O with kernel 5.0 through 5.6. There is a possible out-of-bounds access in the SMM communication buffer, leading to tampering. The PNP-related SMI sub-functions do not verify data size before getting it from the communication buffer, which could lead to possible circumstances where the data immediately following the command buffer could be destroyed with a fixed value. This is fixed in kernel 5.2 v05.28.45, kernel 5.3 v05.37.45, kernel 5.4 v05.45.45, kernel 5.5 v05.53.45, and kernel 5.6 v05.60.45.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

0.00 pp

From 0.15% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.15%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Insyde1 product
  • kernel≥ 5.2, < 5.28.45 | ≥ 5.3, < 5.37.45 | ≥ 5.4, < 5.45.45 | ≥ 5.5, < 5.53.45 | ≥ 5.6, < 5.60.45

1 vendor · 1 product

References

1 links