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Fencer Vulns
high 7.0

CVE-2022-32471 json

An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5.

published 2023-02-15 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-35543

cvss
7.0
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 2%
public exploits
0
none known

Summary

An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. The IhisiDxe driver uses the command buffer to pass input and output data. By modifying the command buffer contents with DMA after the input parameters have been checked but before they are used, the IHISI SMM code may be convinced to modify SMRAM or OS, leading to possible data corruption or escalation of privileges.

Patch / fix

  • insyde insydeh2o 5.2.05.27.37, 5.3.05.36.37, 5.4.05.44.45, 5.5.05.52.45

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-23-257-04 updated cvss 8.2

Siemens RUGGEDCOM APE1808 Products

  • Siemens RUGGEDCOM APE1808 ADM (6GK6015-0AL20-0GL0) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808 ADM CC (6GK6015-0AL20-0GL1) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808 CKP (6GK6015-0AL20-0GK0) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808 CKP CC (6GK6015-0AL20-0GK1) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808 CLOUDCONNECT (6GK6015-0AL20-0GM0) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808 CLOUDCONNECT CC (6GK6015-0AL20-0GM1) <BIOS_V1.0.212N
    +16 more products
    Siemens RUGGEDCOM APE1808 ELAN (6GK6015-0AL20-0GP0) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808 ELAN CC (6GK6015-0AL20-0GP1) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808 SAM-L (6GK6015-0AL20-0GN0) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808 SAM-L CC (6GK6015-0AL20-0GN1) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808CLA-P (6GK6015-0AL20-1AA0) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808CLA-P CC (6GK6015-0AL20-1AA1) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808CLA-S1 (6GK6015-0AL20-1AB0) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808CLA-S1 CC (6GK6015-0AL20-1AB1) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808CLA-S3 (6GK6015-0AL20-1AD0) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808CLA-S3 CC (6GK6015-0AL20-1AD1) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808CLA-S5 (6GK6015-0AL20-1AF0) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808CLA-S5 CC (6GK6015-0AL20-1AF1) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808LNX (6GK6015-0AL20-0GH0) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808LNX CC (6GK6015-0AL20-0GH1) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808W10 (6GK6015-0AL20-0GJ0) <BIOS_V1.0.212N Siemens RUGGEDCOM APE1808W10 CC (6GK6015-0AL20-0GJ1) <BIOS_V1.0.212N
    affected: fixed in V1.0.212N support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

0.13% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness
  • CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.