CVE-2026-46037

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

27/05/2026

Last modified:

16/06/2026

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.20 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): High

Base Score 3.x

8.20

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.13 (including)	5.15.209 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.175 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.140 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.12.86 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13 (including)	6.18.27 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.19 (including)	7.0.4 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2026-46037

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools