SB20260626164 - Improper control of a resource through its lifetime in Linux kernel vmw_vsock

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Main Vulnerability Database SB20260626164

SB20260626164 - Improper control of a resource through its lifetime in Linux kernel vmw_vsock

Published: June 26, 2026

Security Bulletin ID SB20260626164
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 control of a resource through its lifetime (CVE-ID: CVE-2026-53181)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

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 vmci_transport_recv_listen() when handling failed connection handshakes. A remote attacker can send malformed packets that trigger repeated handshake failures to cause a denial of service.

The issue can permanently prevent the listener from accepting new connections until the affected process is restarted.


Remediation

Install update from vendor's website.

References