CVE-2023-47252 json
An issue was discovered in PnpSmm in Insyde InsydeH2O with kernel 5.0 through 5.6.
published 2024-04-26 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-51383
- cvss
- 6.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 3%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- insyde kernel 5.28.45, 5.37.45, 5.45.45, 5.53.45, 5.60.45
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.15% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.3 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H |
| CNA | 3.1 | 6.3 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H |
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
insyde.com
/security-pledge/SA-2023067
vendor-advisory
Sources
- CVE List CVE-2023-47252
- NVD CVE-2023-47252
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