CVE-2026-98852Medium· 5.9▾ SunlitA flaw was found in the Linux kernel's networking subsystem. An attacker could exploit this vulnerability by sending specially crafted encapsulated IPv6 network traffic, leading to a Denial of Service (DoS). This issue stems from improper …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 32.5 · 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
— → 5.9
none → medium
A flaw was found in the Linux kernel's networking subsystem. An attacker could exploit this vulnerability by sending specially crafted encapsulated IPv6 network traffic, leading to a Denial of Service (DoS). This issue stems from improper validation and parsing of IPv6 extension headers in tunneled packets, which can cause network packet drops or trigger unsafe memory dereferences leading to system instability.
kernel: net: extend IPv6 exthdr detection of tunneled packets — 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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