{"apiVersion":"1.0","identifier":"CVE-2026-74409","description":"In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: add bounds check on firmware mac_id in link lookup The mac_id field in RX descriptors is 8 bits wide (0-255), but assoc_link_on_macid[] has only RTW89_MAX_MAC_ID_NUM (128) entries. While the driver currently assigns mac_id values below 128, the descriptor value comes from firmware and is not validated before use as an array index. Add a defensive bounds check in rtw89_assoc_link_rcu_dereference() to guard against out-of-range firmware values.","publishedAt":"2026-08-15T06:22:42","lastModifiedAt":"2026-08-17T06:19:36","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74409","cvssScore":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.0024,"riskScore":0.9,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74409","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74409","en":"https://www.redsauce.net/en/cves/CVE-2026-74409","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74409","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74409","de":"https://www.redsauce.net/de/cves/CVE-2026-74409","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74409","el":"https://www.redsauce.net/el/cves/CVE-2026-74409"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74409"}}