SB2026052884 - Improper Initialization in Linux kernel rxrpc

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Main Vulnerability Database SB2026052884

SB2026052884 - Improper Initialization in Linux kernel rxrpc

Published: May 28, 2026

Security Bulletin ID SB2026052884
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) Improper Initialization (CVE-ID: CVE-2026-45988)

CWE-ID: CWE-665 - Improper Initialization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/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 improper state management in RxRPC packet processing when handling RESPONSE or CHALLENGE packets after a temporary processing failure. A remote attacker can send a sequence of crafted packets that trigger packet reprocessing to cause a denial of service.

The issue can occur when a packet is left in a partially decrypted state and then requeued for retry.


Remediation

Install update from vendor's website.

References