{"apiVersion":"1.0","identifier":"CVE-2026-74475","description":"In the Linux kernel, the following vulnerability has been resolved: vxlan: use neigh_ha_snapshot() in route_shortcircuit() The neighbour hardware address n->ha can be updated asynchronously by the neighbour subsystem, protected by n->ha_lock seqlock. Reading n->ha without holding the seqlock loop can lead to torn reads or reading a partially updated MAC address. Use neigh_ha_snapshot() in route_shortcircuit() to safely copy n->ha under read_seqbegin()/read_seqretry() lock protection before using it. Note that arp_reduce() and neigh_reduce() seem to have the same issue left for future patches.","publishedAt":"2026-08-15T13:17:52","lastModifiedAt":"2026-08-19T17:21:04","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74475","cvssScore":10,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L","epssProbability":0.00454,"riskScore":1.04,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74475","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74475","en":"https://www.redsauce.net/en/cves/CVE-2026-74475","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74475","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74475","de":"https://www.redsauce.net/de/cves/CVE-2026-74475","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74475","el":"https://www.redsauce.net/el/cves/CVE-2026-74475"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74475"}}