What is CVE-2026-43199?

CVE-2026-43199 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2026-05-06.

How severe is CVE-2026-43199?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Linux

CVE-2026-43199

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix "scheduling while atomic" in IPsec MAC address query Fix a "scheduling while atomic" bug in mlx5e_ipsec_init_macs() by replacing mlx5_query_mac_address()…

EPSS: 0.001 (17.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions cee137a634318bfbda18ee5af45d300153b57fa5, 6.2, 0
Linux Linux_kernel — versions 7.0

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)

Frequently asked questions

What is CVE-2026-43199?: CVE-2026-43199 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2026-05-06.
How severe is CVE-2026-43199?: High severity. CVSS v3 base score is 7.5 out of 10.