Not yet scoredPublished Oct 23, 2026

CVE-2026-98873netfilter: nf_conntrack_expect: zero at allocation time

Updated under an hour ago (Oct 27, 2026, 12:50 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_expect: zero at allocation time There are occasional LLM hints wrt. leaking uninitialized data to userspace via ctnetlink. Just zero at allocation time, expectations are not frequently used these days. Intentionally keeps _init as-is because we could theoretically support re-init, so add the missing exp->dir there.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 26, 2026
First seen by InfoSec Signals: Oct 23, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	076a0ca02644657b13e4af363f487ced2942e9cb builds before 39cb6ff947c16a576ea68c5f272e634acdcb0085; from 076a0ca02644657b13e4af363f487ced2942e9cb before 90545aa07a183887e9d72ce573c18e08f62e2c91; 076a0ca02644657b13e4af363f487ced2942e9cb builds before 9c11d7ea5ff4dbe162e79f00188814ef5483c295; from 076a0ca02644657b13e4af363f487ced2942e9cb before b7f3ee925aee9f1f547d539bc03c35433c238958; from 076a0ca02644657b13e4af363f487ced2942e9cb before 824397af7bfe14edad374c64253dae0187ca623d; from 076a0ca02644657b13e4af363f487ced2942e9cb before a39ecb856514274c80d0fac4d128dba6b266a8ed; from 076a0ca02644657b13e4af363f487ced2942e9cb before 241ccd2fed9051db443aadce248fc0ab30f55e97	CNA record

References

References

https://git.kernel.org/stable/c/39cb6ff947c16a576ea68c5f272e634acdcb0085
https://git.kernel.org/stable/c/90545aa07a183887e9d72ce573c18e08f62e2c91
https://git.kernel.org/stable/c/9c11d7ea5ff4dbe162e79f00188814ef5483c295
https://git.kernel.org/stable/c/b7f3ee925aee9f1f547d539bc03c35433c238958
https://git.kernel.org/stable/c/824397af7bfe14edad374c64253dae0187ca623d
https://git.kernel.org/stable/c/a39ecb856514274c80d0fac4d128dba6b266a8ed
https://git.kernel.org/stable/c/241ccd2fed9051db443aadce248fc0ab30f55e97

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.