{"cve":"CVE-2026-45873","nvd":{"published":"2026-05-27T14:17:00.780","modified":"2026-06-25T21:06:04.977","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_set_rbtree: check for partial overlaps in anonymous sets\n\nUserspace provides an optimized representation in case intervals are\nadjacent, where the end element is omitted.\n\nThe existing partial overlap detection logic skips anonymous set checks\non start elements for this reason.\n\nHowever, it is possible to add intervals that overlap to this anonymous\nwhere two start elements with the same, eg. A-B, A-C where C < B.\n\n      start     end\n\tA        B\n      start  end\n        A     C\n\nRestore the check on overlapping start elements to report an overlap.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/029e5f6a95e905b12d6bc20421be32a01e0eb311","https://git.kernel.org/stable/c/05feaf826390fd16f1deb89dd9412def3b2a280f","https://git.kernel.org/stable/c/4780ec142cbb24b794129d3080eee5cac2943ffc","https://git.kernel.org/stable/c/7ca5813e1b21ef300e04593f47b073ef3217aac6","https://git.kernel.org/stable/c/dad14d22dff1a191612acb98facceb303d0524a2"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:36:28.938604137+00:00"},"epss":{"cve":"CVE-2026-45873","score":0.0016,"percentile":0.05215,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}