What is CVE-2026-31426?

CVE-2026-31426 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.0/10. Published 2026-04-13.

How severe is CVE-2026-31426?

High severity. CVSS v3 base score is 7.0 out of 10.

Use After Free in Linux

CVE-2026-31426

In the Linux kernel, the following vulnerability has been resolved: ACPI: EC: clean up handlers on probe failure in acpi_ec_setup() When ec_install_handlers() returns -EPROBE_DEFER on reduced-hardware platforms, it has already started th…

Vulnerability class: Use-After-Free

EPSS: 0.000 (3.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions 03e9a0e05739cf872fee494b06c75c0469704a21, 5.7, 0
Linux Linux_kernel — versions 5.7, 7.0

Weakness classification (CWE)

CWE-416 — Use After Free

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-31426?: CVE-2026-31426 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.0/10. Published 2026-04-13.
How severe is CVE-2026-31426?: High severity. CVSS v3 base score is 7.0 out of 10.