What is CVE-2026-72283?

CVE-2026-72283 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10, affecting Linux kernel versions from 6.17 onward and patched in 6.18.40, 7.1.5 and 7.2. CVE-2026-72283 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-72283?

CVE-2026-72283 has a CVSS score of 8.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Is there a patch available for CVE-2026-72283?

Yes, CVE-2026-72283 has been patched. Fixed versions include 6.18.40, 7.1.5 and 7.2. If you are running Linux kernel 6.17 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-72283 actively exploited?

CVE-2026-72283 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-72283

High

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Nullify irqfd->producer if updating IRTE for bypass fails Nullify irqfd->producer if updating the IRTE for bypass fails, as leaving a dangling pointer will result in a use-after-free if the irqfd is reachable through KVM's routing, but the producer is freed separately. E.g. for VFIO PCI, the producer is embedded in struct "vfio_pci_irq_ctx" and freed when the vector is disabled, which can happen independent of routing updates. [sean: drop PPC change, massage changelog]

Package Linux Kernel

Published 2026-08-15

Last modified 2026-08-17

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

8.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Affected versions

Linux kernel versions 6.17 and later are affected. Fixed in 6.18.40, 7.1.5, 7.2 and their respective stable series.

Affected from

≥ 6.17

Fixed in

✓ 6.18.40 6.18.x ✓ 7.1.5 7.1.x ✓ 7.2

References

3 total

Details

CVE ID CVE-2026-72283

Severity High

CVSS score 8.8 / 10

CVSS version 3.1

Published 2026-08-15

Modified 2026-08-17

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-72283?

CVE-2026-72283 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10 . It affects Linux kernel versions from 6.17 onward and has been patched in 6.18.40, 7.1.5 and 7.2. CVE-2026-72283 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-72283?

CVE-2026-72283 has a CVSS score of 8.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
Is there a patch available for CVE-2026-72283?

Yes. CVE-2026-72283 has been patched. Fixed versions include 6.18.40, 7.1.5 and 7.2. If you are running Linux kernel 6.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-72283 actively exploited?

No. CVE-2026-72283 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.