CVE-2022-46897: An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5

Q: How do I fix CVE-2022-46897?

kernel: upgrade to newer than 5.5. Exact commands for each OS are on this page.

Q: Is CVE-2022-46897 being exploited?

CVE-2022-46897 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-46897 affect?

CVE-2022-46897 affects kernel. Severity is medium (CVSS 5.3). An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. The CapsuleIFWUSmm driver does not check the return value from a method or function. This can prevent it from detecting unexpected states and conditions.

Q: How urgent is CVE-2022-46897?

Priority 20/100. No elevated risk signals yet.

Routine

MEDIUM 5.3UPGRADE

CVE-2022-46897 is a medium-severity flaw (CVSS 5.3) affecting kernel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. The CapsuleIFWUSmm driver does not check the return value from a method or function. This can prevent it from detecting unexpected states and conditions.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Local
Attack complexity	High
Privileges needed	High
User interaction	None
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-252
Published	2024-04-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: insyde

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-04-22 18:15 UTCPublished CVE record published
2026-06-17 05:12 UTCUpdated Record last modified

insyde kernel UPGRADE

Affected: >= 5.0 and <= 5.5

Fixed in: newer than 5.5

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-46897?

kernel: upgrade to newer than 5.5. Exact commands for each OS are on this page.

Is CVE-2022-46897 being exploited?

CVE-2022-46897 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-46897 affect?

CVE-2022-46897 affects kernel. Severity is medium (CVSS 5.3). An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. The CapsuleIFWUSmm driver does not check the return value from a method or function. This can prevent it from detecting unexpected states and conditions.

How urgent is CVE-2022-46897?

Priority 20/100. No elevated risk signals yet.

Related CVEs

CVE-2024-52880 HIGH 7.9 UPGRADE An issue was discovered in Insyde InsydeH2O kernel 5.2 before version 05.29.50, kernel 5.3 before version 05.3
CVE-2024-49200 MEDIUM 6.4 MITIGATE An issue was discovered in AcpiS3SaveDxe and ChipsetSvcDxe in Insyde InsydeH2O with kernel 5.2 though 5.7
CVE-2023-47252 MEDIUM 6.3 UPGRADE An issue was discovered in PnpSmm in Insyde InsydeH2O with kernel 5.0 through 5.6

References

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