How severe is CVE-2026-33197?

CVE-2026-33197 has a CVSS 4.0 base score of 8.7, rated high severity.

Is CVE-2026-33197 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-33197?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-33197 published?

CVE-2026-33197 was published on 2026-09-08.

CVE-2026-33197

CVE-2026-33197 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-184.

Key facts

Severity: High (CVSS 4.0 base score 8.7)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-184
Published: 2026-09-08
Last modified: 2026-09-08

Description

AMI APTIOV contains a vulnerability in BIOS where a privileged user may cause the “Incomplete List of Disallowed Inputs” by local access. Successful exploitation of this vulnerability may lead to arbitrary code execution and impact system Confidentiality, Integrity, and Availability.

Frequently asked questions

What is CVE-2026-33197?: AMI APTIOV contains a vulnerability in BIOS where a privileged user may cause the “Incomplete List of Disallowed Inputs” by local access. Successful exploitation of this vulnerability may lead to arbitrary code execution and impact system Confidentiality, Integrity, and Availability.
How severe is CVE-2026-33197?: CVE-2026-33197 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2026-33197 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-33197?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-33197 published?: CVE-2026-33197 was published on 2026-09-08.

References

https://go.ami.com/hubfs/Security%20Advisories/2026/AMI-SA-2026001.pdf

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