Vulnerability in Linux

CVE-2026-63919

In the Linux kernel, the following vulnerability has been resolved: xfrm: input: hold netns during deferred transport reinjection Transport-mode reinjection stores a struct net pointer in skb->cb and uses it later from xfrm_trans_reinjec…

EPSS: 0.002 (13.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

  • Linux — versions 7b3801927e52f8621de311277f7fc727635019e7, 5.6, 0

References

Frequently asked questions

What is CVE-2026-63919?
CVE-2026-63919 is a high-severity vulnerability in Linux. CVSS score: 8.8/10. Published 2026-07-19.
How severe is CVE-2026-63919?
High severity. CVSS v3 base score is 8.8 out of 10.