SB20260626167 - Type Confusion in Linux kernel ipv4

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Main Vulnerability Database SB20260626167

SB20260626167 - Type Confusion in Linux kernel ipv4

Published: June 26, 2026

Security Bulletin ID SB20260626167
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Type Confusion (CVE-ID: CVE-2026-53184)

CWE-ID: CWE-843 - Type confusion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a type confusion in udp_read_skb() when processing UDP packets for a socket in a sockmap with an attached SK_SKB verdict program that performs a socket lookup. A remote attacker can send a specially crafted packet to cause a denial of service.

Exploitation requires a UDP socket to be in a sockmap and the attached verdict program to call a socket-lookup helper.


Remediation

Install update from vendor's website.

References