What is CVE-2026-23276?

CVE-2026-23276 is a medium-severity vulnerability in Linux, classified under Uncontrolled Recursion. CVSS score: 5.5/10. Published 2026-03-20.

How severe is CVE-2026-23276?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux

CVE-2026-23276

In the Linux kernel, the following vulnerability has been resolved: net: add xmit recursion limit to tunnel xmit functions Tunnel xmit functions (iptunnel_xmit, ip6tunnel_xmit) lack their own recursion limit. When a bond device in broadc…

EPSS: 0.000 (6.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions 7.0, 6.18.19, 745e20f1b626b1be4b100af5d4bf7b3439392f8f
Linux Linux_kernel — versions 7.0

Weakness classification (CWE)

CWE-674 — Uncontrolled Recursion

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-2026-23276?: CVE-2026-23276 is a medium-severity vulnerability in Linux, classified under Uncontrolled Recursion. CVSS score: 5.5/10. Published 2026-03-20.
How severe is CVE-2026-23276?: Medium severity. CVSS v3 base score is 5.5 out of 10.