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CVE-2024-56609: wifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb

highCVSS 7.8CVE-2024-56609

CSIRTS triage

vendor: Linuxproduct: LinuxMemory corruption
What
The RTW88 WiFi driver incorrectly handles TX skb cleanup, potentially causing memory corruption or use-after-free.
Who is affected
Systems using RTW88-based WiFi adapters (Realtek 802.11ac USB/PCIe devices).
Urgency
Urgent; memory corruption with CVSS 7.8 (high) can lead to kernel crash or code execution under load.
Action
Apply the kernel patch that uses ieee80211_purge_tx_queue() for proper TX skb queue cleanup.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 7.8
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-56609

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2024-56609coverage & exploitation statusNVD · CVE.org

Recent advisories for wifi

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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