CVE-2026-45873
Full vulnerability record from the local CVENow database.
Description
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.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-05-27 14:17:00.780000
Last modified
2026-11-06 16:18:48.757000
View original CVE JSON
{
"id": "CVE-2026-45873",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-05-27T14:17:00.780",
"lastModified": "2026-11-06T16:18:48.757",
"vulnStatus": "Analyzed",
"cveTags": [],
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"lang": "en",
"value": "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."
}
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"scope": "UNCHANGED",
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