Vulnerability in Linux

CVE-2026-43503

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker through frag-transfer helpers Two frag-transfer helpers (__pskb_copy_fclone() and skb_shift()) fail to propagate the SKBFL_SHAR…

EPSS: 0.000 (2.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

  • Linux — versions cef401de7be8c4e155c6746bfccf721a4fa5fab9, 6.6.141, 6.1.174

References

Frequently asked questions

What is CVE-2026-43503?
CVE-2026-43503 is a high-severity vulnerability in Linux. CVSS score: 8.8/10. Published 2026-05-23.
How severe is CVE-2026-43503?
High severity. CVSS v3 base score is 8.8 out of 10.