What is CVE-2026-43459?

CVE-2026-43459 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.3/10. Published 2026-05-08.

How severe is CVE-2026-43459?

High severity. CVSS v3 base score is 7.3 out of 10.

Use After Free in Linux

CVE-2026-43459

In the Linux kernel, the following vulnerability has been resolved: ASoC: soc-core: flush delayed work before removing DAIs and widgets When a sound card is unbound while a PCM stream is open, a use-after-free can occur in snd_soc_dapm_s…

Vulnerability class: Use-After-Free

EPSS: 0.000 (1.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

Affected products

Linux — versions e894efef9ac7c10b7727798dcc711cccf07569f9, 4.20, 0
Linux Linux_kernel — versions 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)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-43459?: CVE-2026-43459 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.3/10. Published 2026-05-08.
How severe is CVE-2026-43459?: High severity. CVSS v3 base score is 7.3 out of 10.