In the Linux kernel, the following vulnerability has been resolved: netfilter: allow exp not to be removed in nf_ct_find_expectation Currently nf_conntrack_in() calling nf_ct_find_expectation() will remove the exp from the hash table. However, in some scenario, we expect the exp not to be removed when the created ct will not be confirmed, like in OVS and TC conntrack in the following patches. This patch allows exp not to be removed by setting IPS_CONFIRMED in the status of the tmpl.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Public exploits 2
- HoangNhoo/Reproduce-CVE-2023-52927 PoC on GitHub
- seadragnol/CVE-2023-52927 PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Change history 1
- First seenCVSS 7.8 · linux, debianNVD modified 2026-10-15 01:17
Affected (CPE criteria) 2
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
References 8
- https://git.kernel.org/stable/c/3fa58a6fbd1e9e5682d09cdafb08fba004cb12ec Broken Link
- https://git.kernel.org/stable/c/4914109a8e1e494c6aa9852f9e84ec77a5fc643f Broken Link
- https://seadragnol.github.io/posts/CVE-2023-52927/ Exploit, Technical Description
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html Issue Tracking, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html