What is CVE-2026-43257?

CVE-2026-43257 is a medium-severity vulnerability in Linux, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 5.5/10. Published 2026-05-06.

How severe is CVE-2026-43257?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux

CVE-2026-43257

In the Linux kernel, the following vulnerability has been resolved: media: cx88: Add missing unmap in snd_cx88_hw_params() In error path, add cx88_alsa_dma_unmap() to release resource acquired by cx88_alsa_dma_map().

EPSS: 0.000 (2.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions b2c75abde0debfb824f72845c3ed77d4b66798a0, 3.19, 0
Linux Linux_kernel

Weakness classification (CWE)

CWE-772 — Missing Release of Resource after Effective Lifetime

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-2026-43257?: CVE-2026-43257 is a medium-severity vulnerability in Linux, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 5.5/10. Published 2026-05-06.
How severe is CVE-2026-43257?: Medium severity. CVSS v3 base score is 5.5 out of 10.