What is CVE-2026-31531?

CVE-2026-31531 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-04-23.

How severe is CVE-2026-31531?

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

Vulnerability in Linux

CVE-2026-31531

In the Linux kernel, the following vulnerability has been resolved: ipv4: nexthop: allocate skb dynamically in rtm_get_nexthop() When querying a nexthop object via RTM_GETNEXTHOP, the kernel currently allocates a fixed-size skb using NLM…

EPSS: 0.000 (1.1th 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 430a049190de3c9e219f43084de9f1122da04570, 5.3, 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)

Frequently asked questions

What is CVE-2026-31531?: CVE-2026-31531 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-04-23.
How severe is CVE-2026-31531?: Medium severity. CVSS v3 base score is 5.5 out of 10.