NexaPulse
Subscribe
8.2highHigh

CVE-2026-46037

Linux Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: validate reply type before using icmp_pointers Extended echo replies use ICMP_EXT_ECHOREPLY as the outbound reply type. That value is outside the range covered by icmp_pointers[], which only describes the traditional ICMP types up to NR_ICMP_TYPES. Avoid consulting icmp_pointers[] for reply types outside that range, and use array_index_nospec() for the remaining in-range lookup. Normal ICMP replies keep their existing behavior unchanged.

Exploitation status

  • A vendor advisory or patch reference has been published.

What the metrics mean

  • It is reachable over a network, without needing local access.
  • For an attacker who can reach it, no special conditions are needed to exploit it.
  • To exploit it, no account is needed.
  • Beyond that, no action by a user is required.

Scoring

CVSS
8.2 (v3.1)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Assigned by
416baaa9-dc9f-4396-8d5f-8c081fb06d67

Dates

Published
2026-05-27
Last modified
2026-09-08
Sources
NVD

Affected products

  • Linux Linux Kernel5.13 - 5.15.209, 5.16 - 6.1.175, 6.2 - 6.6.140, 6.7 - 6.12.86, 6.13 - 6.18.27, 6.19 - 7.0.4

As listed in the NVD configuration data. Not a statement about your estate.

References