CVE-2026-68161
Linux kernel vulnerability
- Published10 Aug 2026
Description
In the Linux kernel, the following vulnerability has been resolved: sctp: close UDP tunnel sockets during netns teardown proc_sctp_do_udp_port() starts per-net SCTP UDP tunneling sockets when net.sctp.udp_port is set, and stops/restarts them when the sysctl value changes. The netns exit path does not stop these sockets, so a namespace can be torn down while its SCTP UDP tunnel sockets are still installed. Close the UDP tunnel sockets from sctp_ctrlsock_exit() after unregistering the per-net sysctl table. This prevents new sysctl writes from racing in while the sockets are being released, and closes the sockets before the control socket is destroyed.
CVSS 3.1 breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HRemediation
No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.
References
- https://git.kernel.org/stable/c/37ff9794be48d0caa37687e04d09675f9c849121
- https://git.kernel.org/stable/c/3bf0e349cbb4f975f35eb22753acc346b89c66a0
- https://git.kernel.org/stable/c/8ff78591d309c50a4fdab683b68dd8d512a270dd
- https://git.kernel.org/stable/c/c29affd44e6769e3073235d4b471d9b501fa8166
- https://git.kernel.org/stable/c/c6eb2d615210b80339548ab07c0230edaab9a6c7
- https://git.kernel.org/stable/c/ffb2bd7ade36ec4da32c46a6eddbf4515316d08c
Frequently asked
Is CVE-2026-68161 being actively exploited?
CVE-2026-68161 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.72%.
How severe is CVE-2026-68161?
CVE-2026-68161 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.72% probability of exploitation.
How do I fix CVE-2026-68161?
Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.
How Secuno handles this
Secuno correlates vulnerabilities like CVE-2026-68161 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.
Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.