CVE-2022-30771 json
Initialization function in PnpSmm could lead to SMRAM corruption when using subsequent PNP SMI functions Initialization function in PnpSmm…
published 2022-11-15 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-52595
- cvss
- 8.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 9%
- public exploits
- 0
- none known
Summary
Initialization function in PnpSmm could lead to SMRAM corruption when using subsequent PNP SMI functions Initialization function in PnpSmm could lead to SMRAM corruption when using subsequent PNP SMI functions. This issue was discovered by Insyde engineering during a security review. Fixed in: Kernel 5.1: Version 05.17.25 Kernel 5.2: Version 05.27.25 Kernel 5.3: Version 05.36.25 Kernel 5.4: Version 05.44.25 Kernel 5.5: Version 05.52.25 https://www.insyde.com/security-pledge/SA-2022064
Patch / fix
- insyde kernel 5.1.05.17.25, 5.2.05.27.25, 5.3.05.36.25, 5.4.05.44.25, 5.5.05.52.25
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 8.2 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 8.2 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
| CNA | 3.1 | 8.2 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
insyde.com
/security-pledge
vendor-advisory
-
insyde.com
/security-pledge/SA-2022064
vendor-advisory
Sources
- CVE List CVE-2022-30771
- NVD CVE-2022-30771
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