CVE-2026-74581: Linux 5.16

Affected technology

Linux · 209d35ee34e25f9668c404350a1c86d914c54ffa to before 90c57310e266eb94e4a80d6b15a9ca131d2e82cb, 8ef8a76a340ebdb2c2eea3f6fb0ebbed09a16383 to before 5d29b286c9de0b309e94b9ed083aa1a2f429434f, cdef485217d30382f3bf6448c54b4401648fe3f1 to before 354db6243eca59e9d187ffbf8b7955b044ce84dc, cdef485217d30382f3bf6448c54b4401648fe3f1 to before 6d98c70fe0ba8c7708bfd5b2a5174d2086775daa, cdef485217d30382f3bf6448c54b4401648fe3f1 to before 9bad152c42b37499162367fe47867411e62fffa3, cdef485217d30382f3bf6448c54b4401648fe3f1 to before dc3ab04220667f254f4348572b2a0b3febff89fb, cdef485217d30382f3bf6448c54b4401648fe3f1 to before a341c091ca0bfae377747b1b59a3bd8ebe18a937, cdef485217d30382f3bf6448c54b4401648fe3f1 to before 6aea62e433fe1b586202a5fee8b5807ce635e1d7, ee38eb8cf9a7323884c2b8e0adbbeb2192d31e29, 5.10.84 to before 5.10.265, 5.15.7 to before 5.15.216, 5.4.164 to before 5.5
Linux

Linux · 5.16
Linux

Component: Not specified by the source
File: net/ipv6/fib6_rules.c

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.