CVE-2026-23121 | Linux Kernel up to 6.18.7 mISDN mISDN_read/mISDN_poll race condition
A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.18.7. This affects the function mISDN_read/mISDN_poll of the component mISDN. Performing a manipulation results in race condition.
This vulnerability is known as CVE-2026-23121. Access to the local network is required for this attack. No exploit is available.
It is advisable to upgrade the affected component.