What is CVE-2026-63885?

CVE-2026-63885 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10, affecting Linux kernel versions from 6.18.32 onward and patched in 6.18.35 and 7.0.12. CVE-2026-63885 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-63885?

CVE-2026-63885 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-2026-63885?

Yes, CVE-2026-63885 has been patched. Fixed versions include 6.18.35 and 7.0.12. If you are running Linux kernel 6.18.32 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-63885 actively exploited?

CVE-2026-63885 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-63885

High

In the Linux kernel, the following vulnerability has been resolved: drm/gem: fix race between change_handle and handle_delete drm_gem_change_handle_ioctl leaves the old handle live in the IDR during the window between spin_unlock(table_lock) and the final spin_lock(table_lock). A concurrent drm_gem_handle_delete on the old handle succeeds in this window, decrements handle_count to 0, and frees the GEM object while the new handle's IDR entry still references it. NULL the old handle's IDR entry before dropping table_lock so that any concurrent GEM_CLOSE on the old handle sees NULL and returns -EINVAL. Restore the old entry on the prime-bookkeeping error path.

Package Linux Kernel

Published 2026-07-19

Last modified 2026-07-27

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 6.18.32, 7.0.9 and later are affected. Fixed in 6.18.35, 7.0.12 and their respective stable series.

Affected from

≥ 6.18.32 ≥ 7.0.9

Fixed in

✓ 6.18.35 6.18.x ✓ 7.0.12 7.0.x

References

3 total

Details

CVE ID CVE-2026-63885

Severity High

CVSS score 8.8 / 10

CVSS version 3.1

Published 2026-07-19

Modified 2026-07-27

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-63885?

CVE-2026-63885 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10 . It affects Linux kernel versions from 6.18.32 onward and has been patched in 6.18.35 and 7.0.12. CVE-2026-63885 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-63885?

CVE-2026-63885 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-2026-63885?

Yes. CVE-2026-63885 has been patched. Fixed versions include 6.18.35 and 7.0.12. If you are running Linux kernel 6.18.32 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-63885 actively exploited?

No. CVE-2026-63885 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.