What is CVE-2026-92522?

CVE-2026-92522 is a High severity Linux kernel vulnerability with a CVSS score of 7.3 out of 10, affecting Linux kernel versions from 4.0 onward and patched in 5.10.270, 5.15.221, 6.1.188 and others. CVE-2026-92522 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-92522?

CVE-2026-92522 has a CVSS score of 7.3 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.

Is there a patch available for CVE-2026-92522?

Yes, CVE-2026-92522 has been patched. Fixed versions include 5.10.270, 5.15.221, 6.1.188 and others. If you are running Linux kernel 4.0 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-92522 actively exploited?

CVE-2026-92522 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-92522

High

In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: validate MADT IOAPIC entry bounds The IOAPIC hotplug lookup parses both MADT and _MAT records directly. The MADT walk previously used a subtable's declared length to advance the cursor after only locating a generic header. The _MAT path likewise passed a generic header to the IOAPIC helper. Validate that a current record has a complete generic header, that its declared length is contained in the available record range, and that a typed IOAPIC record contains the full fixed IOAPIC body before reading its fields. Use the same relation for both MADT and _MAT provider paths.

Package Linux Kernel

Published 2026-09-17

Last modified 2026-09-18

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.3

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Affected versions

Linux kernel versions 4.0 and later are affected. Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6, 7.3-rc1 and their respective stable series.

Affected from

≥ 4.0

Fixed in

✓ 5.10.270 5.10.x ✓ 5.15.221 5.15.x ✓ 6.1.188 6.1.x ✓ 6.6.157 6.6.x ✓ 6.12.110 6.12.x ✓ 6.18.52 6.18.x ✓ 7.2.6 7.2.x ✓ 7.3-rc1

References

8 total

Showing 5 of 8 references View all on NVD

Details

CVE ID CVE-2026-92522

Severity High

CVSS score 7.3 / 10

CVSS version 3.1

Published 2026-09-17

Modified 2026-09-18

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-92522?

CVE-2026-92522 is a High severity Linux kernel vulnerability with a CVSS score of 7.3 out of 10 . It affects Linux kernel versions from 4.0 onward and has been patched in 5.10.270, 5.15.221, 6.1.188 and others. CVE-2026-92522 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-92522?

CVE-2026-92522 has a CVSS score of 7.3 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.
Is there a patch available for CVE-2026-92522?

Yes. CVE-2026-92522 has been patched. Fixed versions include 5.10.270, 5.15.221, 6.1.188 and others. If you are running Linux kernel 4.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-92522 actively exploited?

No. CVE-2026-92522 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.