Medium severity5.5NVD Advisory· Published Apr 22, 2026· Updated Jul 14, 2026
CVE-2026-31496
CVE-2026-31496
Description
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_expect: skip expectations in other netns via proc
Skip expectations that do not reside in this netns.
Similar to e77e6ff502ea ("netfilter: conntrack: do not dump other netns's conntrack entries via proc").
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
11cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 9 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=2.6.28.1,<6.1.168
- cpe:2.3:o:linux:linux_kernel:2.6.28:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
- (no CPE)
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/168145c87444619e3e649322bbe7719ecd00d411nvdPatch
- git.kernel.org/stable/c/2028405ea6987b4448784e439413202cfe19f43fnvdPatch
- git.kernel.org/stable/c/3265ad619987cb551edaf797ed056d80ac450225nvdPatch
- git.kernel.org/stable/c/3db5647984de03d9cae0dcddb509b058351f0ee4nvdPatch
- git.kernel.org/stable/c/9ca8c7452493d915f9bbf2f39331e6c583d07a23nvdPatch
- git.kernel.org/stable/c/dcfcd95b3ae7683e8ae55c92284b3430ce614bc7nvdPatch
- cert-portal.siemens.com/productcert/html/ssa-019113.htmlnvd
- cert-portal.siemens.com/productcert/html/ssa-082556.htmlnvd
News mentions
1- Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFPCISA ICS Advisories