Answer in brief
CVE-2026-45873 records a Medium severity (CVSS 5.5) vulnerability in netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-45873 records a Medium severity (CVSS 5.5) vulnerability in netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4aacf3d78424293e318c616016865380b37b9cc5 <7ca5813e1b21ef300e04593f47b073ef3217aac6 || >=2bf1435fa19d2c58054391b3bba40d5510a5758c <029e5f6a95e905b12d6bc20421be32a01e0eb311 || >=318cb24a4c3fce8140afaf84e4d45fcb76fb280b <f1381ce0a1dd013610985e1c4260908163a427df || >=c9e6978e2725a7d4b6cd23b2facd3f11422c0643 <f1535d56fc3f6c625b7e0559c006bd0318791bb1 || >=c9e6978e2725a7d4b6cd23b2facd3f11422c0643 <05feaf826390fd16f1deb89dd9412def3b2a280f || >=c9e6978e2725a7d4b6cd23b2facd3f11422c0643 <dad14d22dff1a191612acb98facceb303d0524a2 || >=c9e6978e2725a7d4b6cd23b2facd3f11422c0643 <e6497e06a102870803a59570d75ed2c36d7e11b3 || >=c9e6978e2725a7d4b6cd23b2facd3f11422c0643 <4780ec142cbb24b794129d3080eee5cac2943ffc || 7ab87a326f20c52ff4d9972052d085be951c704b || 181859bdfb9734aca449512fccaee4cacce64aed || >=5.10.166 <5.10.252 || >=5.15.91 <5.15.202 || >=6.1.9 <6.1.165 || >=4.19.316 <4.20 || >=5.4.262 <5.5 | 7ca5813e1b21ef300e04593f47b073ef3217aac6, 029e5f6a95e905b12d6bc20421be32a01e0eb311, f1381ce0a1dd013610985e1c4260908163a427df, f1535d56fc3f6c625b7e0559c006bd0318791bb1, 05feaf826390fd16f1deb89dd9412def3b2a280f, dad14d22dff1a191612acb98facceb303d0524a2, e6497e06a102870803a59570d75ed2c36d7e11b3, 4780ec142cbb24b794129d3080eee5cac2943ffc, 5.10.252, 5.15.202, 6.1.165, 4.20, 5.5 |
| Linux/Linuxgeneric | 6.2 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
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.
Quoted source text, attributed separately from HOL analysis.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4aacf3d78424293e318c616016865380b37b9cc5 <7ca5813e1b21ef300e04593f47b073ef3217aac6 || >=2bf1435fa19d2c58054391b3bba40d5510a5758c <029e5f6a95e905b12d6bc20421be32a01e0eb311 || >=318cb24a4c3fce8140afaf84e4d45fcb76fb280b <f1381ce0a1dd013610985e1c4260908163a427df || >=c9e6978e2725a7d4b6cd23b2facd3f11422c0643 <f1535d56fc3f6c625b7e0559c006bd0318791bb1 || >=c9e6978e2725a7d4b6cd23b2facd3f11422c0643 <05feaf826390fd16f1deb89dd9412def3b2a280f || >=c9e6978e2725a7d4b6cd23b2facd3f11422c0643 <dad14d22dff1a191612acb98facceb303d0524a2 || >=c9e6978e2725a7d4b6cd23b2facd3f11422c0643 <e6497e06a102870803a59570d75ed2c36d7e11b3 || >=c9e6978e2725a7d4b6cd23b2facd3f11422c0643 <4780ec142cbb24b794129d3080eee5cac2943ffc || 7ab87a326f20c52ff4d9972052d085be951c704b || 181859bdfb9734aca449512fccaee4cacce64aed || >=5.10.166 <5.10.252 || >=5.15.91 <5.15.202 || >=6.1.9 <6.1.165 || >=4.19.316 <4.20 || >=5.4.262 <5.5 | 7ca5813e1b21ef300e04593f47b073ef3217aac6, 029e5f6a95e905b12d6bc20421be32a01e0eb311, f1381ce0a1dd013610985e1c4260908163a427df, f1535d56fc3f6c625b7e0559c006bd0318791bb1, 05feaf826390fd16f1deb89dd9412def3b2a280f, dad14d22dff1a191612acb98facceb303d0524a2, e6497e06a102870803a59570d75ed2c36d7e11b3, 4780ec142cbb24b794129d3080eee5cac2943ffc, 5.10.252, 5.15.202, 6.1.165, 4.20, 5.5 |
| Linux/Linuxgeneric | 6.2 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
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.
Quoted source text, attributed separately from HOL analysis.