What is CVE-2026-31414?

CVE-2026-31414 is a critical-severity vulnerability in Linux. CVSS score: 9.8/10. Published 2026-04-13.

How severe is CVE-2026-31414?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Linux

CVE-2026-31414

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_expect: use expect->helper Use expect->helper in ctnetlink and /proc to dump the helper name. Using nfct_help() without holding a reference to th…

EPSS: 0.001 (23.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions ea781f197d6a835cbb93a0bf88ee1696296ed8aa, 2.6.30, 0
Linux Linux_kernel — versions 7.0

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)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-31414?: CVE-2026-31414 is a critical-severity vulnerability in Linux. CVSS score: 9.8/10. Published 2026-04-13.
How severe is CVE-2026-31414?: Critical severity. CVSS v3 base score is 9.8 out of 10.