What is CVE-2026-63872?

CVE-2026-63872 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2026-07-19.

How severe is CVE-2026-63872?

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

Vulnerability in Linux

CVE-2026-63872

In the Linux kernel, the following vulnerability has been resolved: esp: fix page frag reference leak on skb_to_sgvec failure In esp_output_tail(), when esp->inplace is false, the old skb page frags are replaced with a new page from the…

EPSS: 0.001 (4.2th 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 cac2661c53f35cbe651bef9b07026a5a05ab8ce0, 4.11, 0

References

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

Frequently asked questions

What is CVE-2026-63872?: CVE-2026-63872 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2026-07-19.
How severe is CVE-2026-63872?: High severity. CVSS v3 base score is 7.5 out of 10.