What is CVE-2026-43291?

CVE-2026-43291 is a high-severity vulnerability in Linux, classified under Use of Uninitialized Resource. CVSS score: 8.3/10. Published 2026-05-08.

How severe is CVE-2026-43291?

High severity. CVSS v3 base score is 8.3 out of 10.

Vulnerability in Linux

CVE-2026-43291

In the Linux kernel, the following vulnerability has been resolved: net: nfc: nci: Fix parameter validation for packet data Since commit 9c328f54741b ("net: nfc: nci: Add parameter validation for packet data") communication with nci nfc…

EPSS: 0.000 (10.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H.

Affected products

Linux — versions 6.1.165, 74837bca0748763a77f77db47a0bdbe63b347628, 9c328f54741bd5465ca1dc717c84c04242fac2e1
Linux Linux_kernel

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

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)

Frequently asked questions

What is CVE-2026-43291?: CVE-2026-43291 is a high-severity vulnerability in Linux, classified under Use of Uninitialized Resource. CVSS score: 8.3/10. Published 2026-05-08.
How severe is CVE-2026-43291?: High severity. CVSS v3 base score is 8.3 out of 10.