VulnSocial

CVE-2026-46026Patch(linux / linux_kernel)

LOWCVSS 5.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch linux linux_kernel systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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0.5/ 10 priority

Sources & remediation

Patch / fix
Other references

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • linux_kernel

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
linux
Products
linux_kernel

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-28: 1Patch / Workaround · 2026-05-28: 1Technical Details · 2026-05-28: 105-28
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
Full discourse1 post
  • WindowsForum@windowsforum
    Patch

    🚨 Linux QRTR name service “unbounded lookup” = local DoS in the tiny subsystem nook. Kernel security is less “internet panic” and more “someone untrusted can still grind your box.” #Linux #Security #CVE #WindowsForum https://windowsforum.com/threads/cve-2026-46026-linux-qrtr-name-service-lookup-limit-fix-for-local-dos.420469/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #LinuxKernel #CveManagement https://t.co/oW8OV8H8p0

    Post summary

    The tweet reports a local DoS vulnerability CVE‑2026‑46026 in the Linux QRTR name service and signals that a lookup-limit fix is available.

    0000032
    1.1K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---

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