CVE-2026-46026

MEDIUM EPSS 2.8%
Published May 27, 20261mo ago · Modified Jun 19, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 27, 2026 1mo ago
Last Modified Jun 19, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Limit the maximum number of lookups Current code does no bound checking on the number of lookups a client can perform. Though the code restricts the lookups to local clients, there is still a possibility of a malicious local client sending a flood of NEW_LOOKUP messages over the same socket. Fix this issue by limiting the maximum number of lookups to 64 globally. Since the nameserver allows only atmost one local observer, this global lookup count will ensure that the lookups stay within the limit. Note that, limit of 64 is chosen based on the current platform requirements. If requirement changes in the future, this limit can be increased.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.7  –  <6.6.140
linuxlinux_kernel*≥6.7  –  <6.12.86
linuxlinux_kernel*≥6.13  –  <6.18.27
linuxlinux_kernel*≥6.19  –  <7.0.4

References 8

  • git.kernel.org https://git.kernel.org/stable/c/0dbec101a7076e9b1e4bd1876f7cf07c56ff4ce3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/20855cef7e659ef84ac73251256fa530819b2346
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2b930bc77e00cb27e1d6e1d497b3b596283465ef
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5640227d9a21c6a8be249a10677b832e7f40dc55
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6e3675251fcea06caecc61eb76462467558adfa6
  • git.kernel.org https://git.kernel.org/stable/c/76adf8f69b0bb3ab20be7c58f5d555027332d113
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/91cb30b6bb1880ba0748ca059bef50b8ac13793d
  • git.kernel.org https://git.kernel.org/stable/c/bd69e0e8a7643ba5385f19f479e8e3da71f8d495

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0dbec101a7076e9b1e4bd1876f7cf07c56ff4ce3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/20855cef7e659ef84ac73251256fa530819b2346
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2b930bc77e00cb27e1d6e1d497b3b596283465ef
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5640227d9a21c6a8be249a10677b832e7f40dc55
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/76adf8f69b0bb3ab20be7c58f5d555027332d113
    Patch