What is CVE-2026-63968?

CVE-2026-63968 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2026-07-19.

How severe is CVE-2026-63968?

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

Vulnerability in Linux

CVE-2026-63968

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible infinite loop in fib6_select_path() Found while auditing the same pattern Sashiko reported in rt6_fill_node() [1]. Apply the same fix as commit f8d8ce…

EPSS: 0.002 (10.7th 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 d0ec61c9f3583b76aebdbb271f5c0d3fcccd48b2, 52da02521ede55fb86546c3fffd9377b3261b91f, 34a949e7a0869dfa31a40416d2a56973fae1807b

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67

Frequently asked questions

What is CVE-2026-63968?: CVE-2026-63968 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2026-07-19.
How severe is CVE-2026-63968?: High severity. CVSS v3 base score is 7.5 out of 10.