CVE-2026-98595Low· 3.3▾ SunlitA flaw was found in the Linux kernel's UDP networking subsystem. When a connected User Datagram Protocol (UDP) socket bound to a specific address is disconnected, the kernel fails to remove the socket entry from its internal connection loo…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 18.2 · 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
Last analysed / modified upstream
0.2%
— → 3.3
none → low
A flaw was found in the Linux kernel's UDP networking subsystem. When a connected User Datagram Protocol (UDP) socket bound to a specific address is disconnected, the kernel fails to remove the socket entry from its internal connection lookup table. A local user can cause stale entries to persist, potentially allowing incoming network packets from former peers to be improperly matched and delivered, or causing degraded network processing performance.
kernel: udp: remove a disconnected socket from the 4-tuple hash table — rated Low by Red Hat. Released 2026-10-18, updated 2026-10-20.
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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