CVE-2026-23139
linux: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conncount: update last_gc only whe...
CVE-2026-23139 is fixed in 55 products on 1 platform, first by DEBIAN-CVE-2026-23139, released February 14, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.6
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0038
32nd percentile
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conncount: update last_gc only when GC has been performed Currently last_gc is being updated everytime a new connection is tracked, that means that it is updated even if a GC wasn't performed. With a sufficiently high packet rate, it is possible to always bypass the GC, causing the list to grow infinitely. Update the last_gc value only when a GC has been actually performed.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| bpftool · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| dtb-aarch64 · opensuse-leap 16.0 | 6.12.0-160000.27.1 | OPENSUSE-SU-2026:20416-1 | Mar 25, 2026 |
| kernel · RHEL 10 | 6.12.0-55.72.1.el10_0 | RHSA-2026:15883 | Mar 12, 2026 |
| kernel-64kb · opensuse-leap 16.0 | 6.12.0-160000.27.1 | OPENSUSE-SU-2026:20416-1 | Mar 25, 2026 |
| kernel-64kb · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-64kb · sles 16.0 | 6.12.0-160000.27.1 | SUSE-SU-2026:20931-1 | Mar 25, 2026 |
| kernel-azure · opensuse-leap 16.0 | 6.12.0-160000.27.1 | OPENSUSE-SU-2026:20416-1 | Mar 25, 2026 |
| kernel-azure · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-azure · sles 16.0 | 6.12.0-160000.27.1 | SUSE-SU-2026:20931-1 | Mar 25, 2026 |
| kernel-default · opensuse-leap 16.0 | 6.12.0-160000.27.1 | OPENSUSE-SU-2026:20416-1 | Mar 25, 2026 |
| kernel-default · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-default · sles 16.0 | 6.12.0-160000.27.1 | SUSE-SU-2026:20931-1 | Mar 25, 2026 |
| kernel-default-base · opensuse-leap 16.0 | 6.12.0-160000.27.1.160000.2.8 | OPENSUSE-SU-2026:20416-1 | Mar 25, 2026 |
| kernel-default-base · sles 15.7 | 6.4.0-150700.53.34.1.150700.17.23.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-default-base · sles 16.0 | 6.12.0-160000.27.1.160000.2.8 | SUSE-SU-2026:20931-1 | Mar 25, 2026 |
| kernel-docs · opensuse-leap 16.0 | 6.12.0-160000.27.1 | OPENSUSE-SU-2026:20416-1 | Mar 25, 2026 |
| kernel-docs · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-docs · sles 16.0 | 6.12.0-160000.27.1 | SUSE-SU-2026:20931-1 | Mar 25, 2026 |
| kernel-kvmsmall · opensuse-leap 16.0 | 6.12.0-160000.27.1 | OPENSUSE-SU-2026:20416-1 | Mar 25, 2026 |
| kernel-kvmsmall · sles 16.0 | 6.12.0-160000.27.1 | SUSE-SU-2026:20931-1 | Mar 25, 2026 |
| kernel-livepatch-SLE15-SP7-RT_Update_10 · sles 15.7 | 1-150700.1.3.1 | SUSE-SU-2026:0962-1 | Mar 23, 2026 |
| kernel-livepatch-SLE15-SP7_Update_10 · sles 15.7 | 1-150700.15.3.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-obs-build · opensuse-leap 16.0 | 6.12.0-160000.27.1 | OPENSUSE-SU-2026:20416-1 | Mar 25, 2026 |
| kernel-obs-build · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-obs-qa · opensuse-leap 16.0 | 6.12.0-160000.27.1 | OPENSUSE-SU-2026:20416-1 | Mar 25, 2026 |
| kernel-obs-qa · sles 16.0 | 6.12.0-160000.27.1 | SUSE-SU-2026:20931-1 | Mar 25, 2026 |
| kernel-rt · opensuse-leap 16.0 | 6.12.0-160000.27.1 | OPENSUSE-SU-2026:20416-1 | Mar 25, 2026 |
| kernel-source · opensuse-leap 16.0 | 6.12.0-160000.27.1 | OPENSUSE-SU-2026:20416-1 | Mar 25, 2026 |
| kernel-source · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-source · sles 16.0 | 6.12.0-160000.27.1 | SUSE-SU-2026:20931-1 | Mar 25, 2026 |
| kernel-syms · opensuse-leap 16.0 | 6.12.0-160000.27.1 | OPENSUSE-SU-2026:20416-1 | Mar 25, 2026 |
| kernel-syms · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-syms · sles 16.0 | 6.12.0-160000.27.1 | SUSE-SU-2026:20931-1 | Mar 25, 2026 |
| kernel-uek · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-container · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-container · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-container-debug · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-container-debug · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-core · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-core · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-core · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-core · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-debug · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-debug · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-core · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-core · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-debug-core · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-debug-core · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-devel · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-devel · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-debug-devel · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-debug-devel · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-debug-modules · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-debug-modules · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules-core · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules-core · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules-deprecated · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules-deprecated · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules-desktop · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules-desktop · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules-extra · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules-extra · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-debug-modules-extra · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-debug-modules-extra · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules-usb · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules-usb · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules-wireless · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-debug-modules-wireless · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-devel · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-devel · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-devel · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-devel · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-doc · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-doc · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-doc · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-doc · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-modules · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-modules · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules-core · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules-core · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules-deprecated · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules-deprecated · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules-desktop · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules-desktop · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules-extra · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules-extra · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-modules-extra · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek-modules-extra · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules-extra-netfilter · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules-extra-netfilter · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules-usb · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules-usb · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules-wireless · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-modules-wireless · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-tools · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek-tools · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek64k · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek64k · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-core · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-core · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek64k-core · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek64k-core · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-devel · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-devel · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek64k-devel · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek64k-devel · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek64k-modules · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek64k-modules · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules-core · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules-core · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules-deprecated · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules-deprecated · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules-desktop · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules-desktop · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules-extra · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules-extra · ol 8 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek64k-modules-extra · ol 9 | 0:5.15.0-318.199.3.2.el9uek | ELSA-2026-50145 | Mar 10, 2026 |
| kernel-uek64k-modules-extra · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules-usb · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules-usb · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules-wireless · ol 10 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-uek64k-modules-wireless · ol 9 | 0:6.12.0-109.67.6.el9uek | ELSA-2026-50144 | Mar 10, 2026 |
| kernel-zfcpdump · opensuse-leap 16.0 | 6.12.0-160000.27.1 | OPENSUSE-SU-2026:20416-1 | Mar 25, 2026 |
| kernel-zfcpdump · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-zfcpdump · sles 16.0 | 6.12.0-160000.27.1 | SUSE-SU-2026:20931-1 | Mar 25, 2026 |
| linux · Debian 12.15 (bookworm) | 6.1.162-1 | DEBIAN-CVE-2026-23139 | Feb 14, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.69-1 | DEBIAN-CVE-2026-23139 | Feb 14, 2026 |
| linux · Debian 14 | 6.18.8-1 | DEBIAN-CVE-2026-23139 | Feb 14, 2026 |
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