What is CVE-2026-46215?

CVE-2026-46215 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.8/10. Published 2026-05-28.

How severe is CVE-2026-46215?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2026-46215 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Use After Free in Linux

CVE-2026-46215

In the Linux kernel, the following vulnerability has been resolved: drm: Set old handle to NULL before prime swap in change_handle There was a potential race condition in change_handle. The ioctl briefly had a single object with two idr…

Vulnerability class: Use-After-Free

EPSS: 0.001 (3.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions 7.1-rc3, 7.0.9, 53096728b8910c6916ecc6c46a5abc5c678b58d9
Linux Linux_kernel — versions 7.1

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
134c704f-9b21-4f2e-91b3-4a467353bcc0

Frequently asked questions

What is CVE-2026-46215?: CVE-2026-46215 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.8/10. Published 2026-05-28.
How severe is CVE-2026-46215?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2026-46215 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.