CVE-2022-32267 json
DMA transactions which are targeted at input buffers used for the SmmResourceCheckDxe software SMI handler cause SMRAM corruption (a TOCTOU…
published 2022-11-14 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-53464
- cvss
- 6.4
- 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
DMA transactions which are targeted at input buffers used for the SmmResourceCheckDxe software SMI handler cause SMRAM corruption (a TOCTOU attack) DMA transactions which are targeted at input buffers used for the software SMI handler used by the SmmResourceCheckDxe driver could cause SMRAM corruption through a TOCTOU attack... This issue was discovered by Insyde engineering. Fixed in kernel Kernel 5.2: 05.27.23. Kernel 5.3: 05.36.23. Kernel 5.4: 05.44.23. Kernel 5.5: 05.52.23 https://www.insyde.com/security-pledge/SA-2022046
Patch / fix
- insyde kernel 5.2.05.27.23, 5.3.05.36.23, 5.4.05.44.23, 5.5.05.52.23
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.14% 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 | 6.4 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 6.4 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
Classification
- Weakness
-
- CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
References
-
insyde.com
/security-pledge
vendor-advisory
-
insyde.com
/security-pledge/SA-2022046
vendor-advisory
Sources
- CVE List CVE-2022-32267
- NVD CVE-2022-32267
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