CVE-2026-45873

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-27. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 5 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

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 v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 25, 2026

Advisory Details (8)

Auto-updated Jun 25, 2026
No patch confirmed yet.
generic

netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f1535d56fc3f6c625b7e0559c006bd0318791bb1
generic

netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f1381ce0a1dd013610985e1c4260908163a427df
generic

netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e6497e06a102870803a59570d75ed2c36d7e11b3
generic

netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dad14d22dff1a191612acb98facceb303d0524a2
generic

netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7ca5813e1b21ef300e04593f47b073ef3217aac6
generic

netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4780ec142cbb24b794129d3080eee5cac2943ffc
generic

netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/05feaf826390fd16f1deb89dd9412def3b2a280f
generic

netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/029e5f6a95e905b12d6bc20421be32a01e0eb311

Vendor Advisories for CVE-2026-45873(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(25)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-6.8 (6.8.0-134.134) @ noble2026-09-14ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1058.61.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2049.50) @ noble2026-09-14ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1060.64) @ noble2026-09-14ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-134.134+fips1) @ noble2026-09-14ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-09-14ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-09-14ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-09-14ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-14ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-09-14ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-09-14ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-09-14ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-09-14ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1029.30) @ noble2026-09-14ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-09-14ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-09-14ubuntu
linuxKernel @ 5.10.252—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (53 versions)5.10.257-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (48 versions)6.1.170-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.85-1~bpo12+1 (17 versions)6.12.85-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.18~rc7-1~exp1 (103 versions)6.18.14-1—

All Vendor Advisories

(24)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 10× in last 7d / 37× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 198 total refreshes for this CVE.

  1. 2026-09-16 05:15 UTCEPSS rescore
  2. 2026-09-14 09:11 UTCEG score recompute
  3. 2026-09-14 09:11 UTCVendor advisory
  4. 2026-09-14 09:11 UTCGHSA enrichment
  5. 2026-09-13 16:47 UTCEPSS rescore
  6. 2026-09-13 04:09 UTCOSV refresh
  7. 2026-09-12 15:01 UTCEPSS rescore
  8. 2026-09-11 14:53 UTCEPSS rescore
  9. 2026-09-11 09:37 UTCEPSS rescore
  10. 2026-09-10 09:34 UTCEPSS rescore
  11. 2026-09-08 22:00 UTCEPSS rescore
  12. 2026-09-07 16:01 UTCEPSS rescore
  13. 2026-09-06 13:47 UTCEPSS rescore
  14. 2026-09-04 05:06 UTCEPSS rescore
  15. 2026-09-02 14:12 UTCEPSS rescore
  16. 2026-09-01 13:54 UTCEPSS rescore
  17. 2026-08-30 19:17 UTCEPSS rescore
  18. 2026-08-30 01:22 UTCEPSS rescore
  19. 2026-08-28 21:41 UTCEPSS rescore
  20. 2026-08-27 14:25 UTCEPSS rescore
  21. 2026-08-26 14:46 UTCEPSS rescore
  22. 2026-08-25 13:49 UTCEPSS rescore
  23. 2026-08-25 05:51 UTCEG score recompute
  24. 2026-08-25 05:51 UTCVendor advisory
  25. 2026-08-25 05:51 UTCGHSA enrichment
Show 75 more
  1. 2026-08-23 15:37 UTCEG score recompute
  2. 2026-08-23 15:37 UTCVendor advisory
  3. 2026-08-23 15:37 UTCGHSA enrichment
  4. 2026-08-21 23:49 UTCEPSS rescore
  5. 2026-08-21 20:59 UTCVendor advisory
  6. 2026-08-21 20:59 UTCGHSA enrichment
  7. 2026-08-20 17:44 UTCEG score recompute
  8. 2026-08-20 17:44 UTCVendor advisory
  9. 2026-08-20 17:43 UTCGHSA enrichment
  10. 2026-08-19 17:04 UTCEPSS rescore
  11. 2026-08-18 13:48 UTCEPSS rescore
  12. 2026-08-17 13:47 UTCEPSS rescore
  13. 2026-08-17 09:22 UTCEG score recompute
  14. 2026-08-17 09:22 UTCVendor advisory
  15. 2026-08-17 09:22 UTCGHSA enrichment
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 02:55 UTCEG score recompute
  18. 2026-08-16 02:55 UTCVendor advisory
  19. 2026-08-16 02:55 UTCGHSA enrichment
  20. 2026-08-16 02:14 UTCEPSS rescore
  21. 2026-08-15 01:30 UTCEPSS rescore
  22. 2026-08-15 00:58 UTCVendor advisory
  23. 2026-08-15 00:58 UTCGHSA enrichment
  24. 2026-08-14 01:35 UTCEG score recompute
  25. 2026-08-14 01:35 UTCVendor advisory
  26. 2026-08-14 01:35 UTCGHSA enrichment
  27. 2026-08-13 22:00 UTCEPSS rescore
  28. 2026-08-12 23:01 UTCEG score recompute
  29. 2026-08-12 23:01 UTCVendor advisory
  30. 2026-08-12 23:01 UTCGHSA enrichment
  31. 2026-08-12 13:51 UTCEPSS rescore
  32. 2026-08-11 23:38 UTCEG score recompute
  33. 2026-08-11 23:38 UTCVendor advisory
  34. 2026-08-11 23:38 UTCGHSA enrichment
  35. 2026-08-11 00:15 UTCEG score recompute
  36. 2026-08-11 00:15 UTCVendor advisory
  37. 2026-08-11 00:15 UTCGHSA enrichment
  38. 2026-08-11 00:00 UTCEPSS rescore
  39. 2026-08-09 21:24 UTCEG score recompute
  40. 2026-08-09 21:24 UTCVendor advisory
  41. 2026-08-09 21:24 UTCGHSA enrichment
  42. 2026-08-09 13:46 UTCEPSS rescore
  43. 2026-08-08 22:01 UTCEG score recompute
  44. 2026-08-08 22:01 UTCVendor advisory
  45. 2026-08-08 22:01 UTCGHSA enrichment
  46. 2026-08-08 16:37 UTCEPSS rescore
  47. 2026-08-07 19:42 UTCEG score recompute
  48. 2026-08-07 19:42 UTCVendor advisory
  49. 2026-08-07 19:42 UTCGHSA enrichment
  50. 2026-08-06 20:19 UTCEG score recompute
  51. 2026-08-06 20:19 UTCVendor advisory
  52. 2026-08-06 20:19 UTCGHSA enrichment
  53. 2026-08-06 13:47 UTCEPSS rescore
  54. 2026-08-05 20:56 UTCEG score recompute
  55. 2026-08-05 20:56 UTCVendor advisory
  56. 2026-08-05 20:56 UTCGHSA enrichment
  57. 2026-08-05 19:17 UTCEPSS rescore
  58. 2026-08-04 15:10 UTCEPSS rescore
  59. 2026-08-04 10:39 UTCEPSS rescore
  60. 2026-08-03 16:30 UTCEG score recompute
  61. 2026-08-03 16:30 UTCVendor advisory
  62. 2026-08-03 16:30 UTCGHSA enrichment
  63. 2026-08-03 10:36 UTCEPSS rescore
  64. 2026-08-02 15:09 UTCEG score recompute
  65. 2026-08-02 15:09 UTCVendor advisory
  66. 2026-08-02 15:09 UTCGHSA enrichment
  67. 2026-08-02 02:27 UTCEPSS rescore
  68. 2026-08-01 15:46 UTCEG score recompute
  69. 2026-08-01 15:46 UTCVendor advisory
  70. 2026-08-01 15:45 UTCGHSA enrichment
  71. 2026-08-01 04:16 UTCEPSS rescore
  72. 2026-07-31 08:04 UTCEG score recompute
  73. 2026-07-31 08:04 UTCVendor advisory
  74. 2026-07-31 08:04 UTCGHSA enrichment
  75. 2026-07-30 16:28 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-45873?
CVE-2026-45873 is a medium vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: 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…
When was CVE-2026-45873 disclosed?
CVE-2026-45873 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45873 actively exploited?
CVE-2026-45873 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 94.4% of all scored CVEs.
What is the CVSS score of CVE-2026-45873?
CVE-2026-45873 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-45873?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45873, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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