CVE-2026-53263 | Linux Kernel up to 7.0.12 6lowpan lowpan_iphc_mcast_ctx_addr_compress s6_addr off-by-one

A vulnerability has been found in Linux Kernel up to 7.0.12 and classified as critical. This issue affects the function lowpan_iphc_mcast_ctx_addr_compress of the component 6lowpan. The manipulation of the argument s6_addr leads to off-by-one.

This vulnerability is uniquely identified as CVE-2026-53263. The attack can only be initiated within the local network. No exploit exists.

The affected component should be upgraded.