{"id":"CVE-2026-64000","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-64000","summary":"net: hsr: fix potential OOB access in supervision frame handling","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hsr: fix potential OOB access in supervision frame handling\n\nEnsure the entire TLV header is linearized before access by adding\nsizeof(struct hsr_sup_tlv) to the pskb_may_pull() calls. Without this,\na truncated frame could cause an out-of-bounds access.","published":"2026-07-19T14:56:18.116Z","modified":"2026-08-12T03:51:33.634831788Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.00491,"percentile":0.40241,"asOf":"2026-08-31"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.1.176"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/09a37dca090c55ffb1a33f52d8667f1c2367ef48"},{"type":"WEB","url":"https://git.kernel.org/stable/c/71c986c0ba45b7dc574fae27c83e7b6671556f37"},{"type":"WEB","url":"https://git.kernel.org/stable/c/78607a6854a22a2502f68092202e75a39af4865d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a4b64f3e9c7b8259f7dd251a0313420ba7c01852"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f229426072fc865654a60978bb7fda790a051ff3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fbd0662f9c9a66e8cc3df3099cca8ed6d3837cc7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64000.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64000"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:33.634831788Z"}}