CVE-2026-45873In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets Userspace provides an optimized representation in case inte…
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In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets Userspace provides an optimized representation in case intervals are adjacent, where the end element is omitted. The existing partial overlap detection logic skips anonymous set checks on start elements for this reason. However, it is possible to add intervals that overlap to this anonymous where two start elements with the same, eg. A-B, A-C where C < B. start end A B start end A C Restore the check on overlapping start elements to report an overlap.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 4.19.316 before 4.20; from 5.4.262 before 5.5; from 5.10.166 before 5.10.252; from 5.15.91 before 5.15.202; from 6.1.9 before 6.1.165; from 6.2.1 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.14; and 5 more ranges | NVD |
References
- https://git.kernel.org/stable/c/029e5f6a95e905b12d6bc20421be32a01e0eb311patch
- https://git.kernel.org/stable/c/05feaf826390fd16f1deb89dd9412def3b2a280fpatch
- https://git.kernel.org/stable/c/4780ec142cbb24b794129d3080eee5cac2943ffcpatch
- https://git.kernel.org/stable/c/7ca5813e1b21ef300e04593f47b073ef3217aac6patch
- https://git.kernel.org/stable/c/dad14d22dff1a191612acb98facceb303d0524a2patch
- https://git.kernel.org/stable/c/e6497e06a102870803a59570d75ed2c36d7e11b3patch
- https://git.kernel.org/stable/c/f1381ce0a1dd013610985e1c4260908163a427dfpatch
- https://git.kernel.org/stable/c/f1535d56fc3f6c625b7e0559c006bd0318791bb1patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.