CVE-2026-98829Medium· 6.5▾ SunlitA flaw was found in the mac80211 wireless networking subsystem of the Linux kernel. An adjacent attacker, such as a rogue Wi-Fi access point or nearby malicious device, can cause a Denial of Service (DoS) by transmitting a sequence of over…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
Last analysed / modified upstream
— → 6.5
none → medium
A flaw was found in the mac80211 wireless networking subsystem of the Linux kernel. An adjacent attacker, such as a rogue Wi-Fi access point or nearby malicious device, can cause a Denial of Service (DoS) by transmitting a sequence of oversized wireless frame fragments. This causes an integer overflow during frame reassembly, leading to an undersized buffer allocation and an immediate system crash.
kernel: wifi: mac80211: drop oversized fragments to avoid extra_len overflow — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-23.
Affected:
No fix planned:
Not affected:
Out of support scope
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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