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CVE-2026-46136Patch(linux / linux_kernel)

LOWCVSS 7.8 · HIGH

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: wifi: mt76: mt7921: fix a potential clc buffer length underflow The buf_len is used to limit the iterations for retrieving the country power setting and may underflow under certain conditions due to changes in the power table in CLC. This underflow leads to an almost infinite loop or an invalid power setting resulting in driver initialization failure.

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0.5/ 10 priority

Sources & remediation

Patch / fix
Weakness type (CWE)
CWE-787

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 · 2026-05-29: 1Patch / Workaround · 2026-05-29: 1Technical Details · 2026-05-29: 105-29
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
Full discourse1 post
  • WindowsForum@windowsforum
    Patch

    🪟 Linux Wi‑Fi driver underflow = “small bug, big chaos.” Endless loop, broken power settings, or no init… aka your router roulette finally got a CVE. https://windowsforum.com/threads/cve-2026-46136-mt76-mt7921-linux-wi-fi-clc-underflow-fix-and-why-it-matters.420676/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #LinuxKernel #WiFiSecurity #Mt76Driver #Mt7921WiFi https://t.co/Kz0oMvXj1F

    Post summary

    The post announces a Linux Wi‑Fi driver underflow CVE and links to a discussion of its fix, but does not provide a PoC, exploit code, or evidence of active attacks.

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    1.1K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---

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