How severe is CVE-2026-75809?

CVE-2026-75809 has a CVSS 4.0 base score of 5.9, rated medium severity.

Is CVE-2026-75809 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-75809?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-75809 published?

CVE-2026-75809 was published on 2026-09-08 and last updated on 2026-09-28.

CVE-2026-75809

CVE-2026-75809 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.9. 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-782.

Key facts

Severity: Medium (CVSS 4.0 base score 5.9)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-782
Published: 2026-09-08
Last modified: 2026-09-28

Description

Exposed IOCTL with insufficient access control in ASUS Armoury Crate allows a local user to disclosure information and disabling device functionality by bypassing driver authentication and using IOCTLs to read from and write to PCIe configuration space.Refer to the ' Security Update for Armoury Crate App ' section on the ASUS Security Advisory for more information.

Frequently asked questions

What is CVE-2026-75809?: Exposed IOCTL with insufficient access control in ASUS Armoury Crate allows a local user to disclosure information and disabling device functionality by bypassing driver authentication and using IOCTLs to read from and write to PCIe configuration space.Refer to the ' Security Update for Armoury Crate App ' section on the ASUS Security Advisory for more information.
How severe is CVE-2026-75809?: CVE-2026-75809 has a CVSS 4.0 base score of 5.9, rated medium severity.
Is CVE-2026-75809 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-75809?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-75809 published?: CVE-2026-75809 was published on 2026-09-08 and last updated on 2026-09-28.

References

https://www.asus.com/security-advisory

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