CVE-2026-23139In 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 connecti…
Updated under an hour ago ()
Does this affect you?
It affects linux_kernel. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- 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
- Not given
- NVD analysis
- Modified
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 5.19 before 6.1.161; from 6.2 before 6.6.121; from 6.7 before 6.12.66; from 6.13 before 6.18.6; 6.19; 6.19; 6.19; 6.19 | NVD |
References
- https://git.kernel.org/stable/c/26a82dce2beee39c43c109d9647e16f49cb02a35patch
- https://git.kernel.org/stable/c/2c7c71113ed6d3e2f3aca4c088f22283016ff34fpatch
- https://git.kernel.org/stable/c/3cd717359e56f82f06cbf8279b47a7d79880c6f3patch
- https://git.kernel.org/stable/c/7811ba452402d58628e68faedf38745b3d485e3cpatch
- https://git.kernel.org/stable/c/8bdafdf4900040a81422056cabe5e00a37bd101apatch
- https://git.kernel.org/stable/c/9f45588993d7f115280fc726119ca86fba32a811patch
- https://git.kernel.org/stable/c/c4cde57c8affdcca5bcff53a1047e15d268bdca1patch
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.