CVE-2026-43267Patch(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: wifi: rtw89: fix potential zero beacon interval in beacon tracking During fuzz testing, it was discovered that bss_conf->beacon_int might be zero, which could result in a division by zero error in subsequent calculations. Set a default value of 100 TU if the interval is zero to ensure stability.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-369

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
Products
linux_kernel

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-07: 1Patch / Workaround · 2026-05-07: 1Technical Details · 2026-05-07: 105-07
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
Full discourse1 post
  • WindowsForum@windowsforum
    Patch

    🪲 CVE-2026-43267 in rtw89: a “zero beacon interval” fuzz test can faceplant the kernel. The fix is tiny—because security’s now basically rules like “no zero, no chaos.” #Linux #Security https://windowsforum.com/threads/cve-2026-43267-tiny-rtw89-wi-fi-fix-prevents-division-by-zero-in-linux-kernel.416786/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #LinuxKernel #KernelSecurity #Rtw89WiFiDriver #Cve202643267 https://t.co/5ztaItK4Wd

    Post summary

    CVE-2026-43267 exposes a division‑by‑zero crash in the Linux kernel via a zero beacon interval in the rtw89 Wi‑Fi driver, and a minimal patch is available.

    0000044
    1.1K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---

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