{"apiVersion":"1.0","identifier":"CVE-2026-74669","description":"In the Linux kernel, the following vulnerability has been resolved: ipvs: clear IPv4 options after rebasing tunnel ICMP errors ip_vs_in_icmp() rebases an skb from the outer ICMP packet to the quoted original request before passing it to icmp_send(). However, IPCB(skb)->opt still describes the outer IPv4 header. A timestamp option in the outer header can therefore leave an offset that points into the quoted transport header after the rebase. __ip_options_echo() treats a byte at that stale location as the option length and copies it into the fixed-size option storage on the __icmp_send() stack, causing a stack out-of-bounds write. Clear the stale option metadata after resetting the network header. Keep the remaining control block fields, including the ingress interface used by the ICMP response path.","publishedAt":"2026-08-22T16:16:40","lastModifiedAt":"2026-08-25T06:18:49","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74669","cvssScore":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.00514,"riskScore":1.03,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74669","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74669","en":"https://www.redsauce.net/en/cves/CVE-2026-74669","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74669","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74669","de":"https://www.redsauce.net/de/cves/CVE-2026-74669","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74669","el":"https://www.redsauce.net/el/cves/CVE-2026-74669"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74669"}}