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CVE-2026-43491

kernel: net: qrtr: ns: Limit the maximum server registration per node

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Severity

Moderate

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · May 19, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel. A malicious client can exploit this by sending a large number of NEW_SERVER messages, which are not properly limited. This can lead to memory exhaustion, causing a Denial of Service (DoS) where the system becomes unresponsive or crashes.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-770 · Allocation of Resources Without Limits or Throttling