CVE-2026-98793Medium· 4.4▾ SunlitA flaw was found in the Linux kernel's netfilter subsystem. Missing validation of Network Address Translation (NAT) manipulation types in BPF connection tracking helpers allows a local user with permissions to run BPF programs to trigger a…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 24.2 · 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
0.2%
Last analysed / modified upstream
— → 4.4
none → medium
A flaw was found in the Linux kernel's netfilter subsystem. Missing validation of Network Address Translation (NAT) manipulation types in BPF connection tracking helpers allows a local user with permissions to run BPF programs to trigger a system crash. By supplying an invalid manipulation type, an attacker can cause the kernel to access uninitialized data structures or trigger a kernel panic, resulting in a Denial of Service (DoS).
kernel: netfilter: bpf: reject invalid NAT manipulation types — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-23.
Affected:
No fix planned:
Not affected:
Fix deferred
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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