CVE-2026-46003

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 — 4 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:

net: qrtr: ns: Limit the total number of nodes

Currently, the nameserver doesn't limit the number of nodes it handles. This can be an attack vector if a malicious client starts registering random nodes, leading to memory exhaustion.

Hence, limit the maximum number of nodes to 64. Note that, limit of 64 is chosen based on the current platform requirements. If requirement changes in the future, this limit can be increased.

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
2%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 19, 2026

Advisory Details (5)

Auto-updated Jun 16, 2026
No patch confirmed yet.
generic

net: qrtr: ns: Limit the total number of nodes - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8022876894d09ae485b499058c3357da683bcc5d
generic

net: qrtr: ns: Limit the total number of nodes - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5cf6d5e5e3b804a44692fbf548a5179442e2e923
generic

net: qrtr: ns: Limit the total number of nodes - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4c46413661431aa60fb134cd4ecdf8beaa39f824
generic

net: qrtr: ns: Limit the total number of nodes - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4665a29c08e1b36bc9db4814f9dde3d23e8fd1b0
generic

net: qrtr: ns: Limit the total number of nodes - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/27d5e84e810b0849d08b9aec68e48570461ce313

Vendor Advisories for CVE-2026-46003(2)

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

Patch Availability(19)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-07-31ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-07-31ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-07-31ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-07-31ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-07-31ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-07-31ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-07-31ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-07-31ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-07-31ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-07-31ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-07-31ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-07-31ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-07-31ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-07-31ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-07-31ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-07-31ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-07-31ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-07-31ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-07-31ubuntu

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.

Additional Vendor Advisories

(19)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 18× in last 7d / 46× 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 124 total refreshes for this CVE.

  1. 2026-08-01 15:26 UTCEG score recompute
  2. 2026-08-01 15:26 UTCVendor advisory
  3. 2026-08-01 15:26 UTCGHSA enrichment
  4. 2026-08-01 04:16 UTCEPSS rescore
  5. 2026-07-31 07:33 UTCEG score recompute
  6. 2026-07-31 07:33 UTCVendor advisory
  7. 2026-07-31 07:33 UTCGHSA enrichment
  8. 2026-07-30 16:28 UTCEPSS rescore
  9. 2026-07-30 01:30 UTCEPSS rescore
  10. 2026-07-29 15:40 UTCEG score recompute
  11. 2026-07-29 15:40 UTCVendor advisory
  12. 2026-07-29 15:40 UTCGHSA enrichment
  13. 2026-07-28 15:36 UTCEPSS rescore
  14. 2026-07-27 14:13 UTCEPSS rescore
  15. 2026-07-27 11:43 UTCEG score recompute
  16. 2026-07-27 11:43 UTCGHSA enrichment
  17. 2026-07-26 14:54 UTCEPSS rescore
  18. 2026-07-26 14:54 UTCEPSS rescore
  19. 2026-07-25 14:18 UTCEPSS rescore
  20. 2026-07-24 14:17 UTCEPSS rescore
  21. 2026-07-23 14:18 UTCEPSS rescore
  22. 2026-07-23 03:16 UTCEG score recompute
  23. 2026-07-22 14:08 UTCEPSS rescore
  24. 2026-07-21 15:24 UTCEPSS rescore
  25. 2026-07-20 17:08 UTCEPSS rescore
Show 75 more
  1. 2026-07-19 14:31 UTCEPSS rescore
  2. 2026-07-19 02:29 UTCEPSS rescore
  3. 2026-07-18 10:04 UTCEPSS rescore
  4. 2026-07-16 17:03 UTCEPSS rescore
  5. 2026-07-15 16:57 UTCEPSS rescore
  6. 2026-07-15 02:00 UTCEPSS rescore
  7. 2026-07-13 22:30 UTCEPSS rescore
  8. 2026-07-13 06:13 UTCEPSS rescore
  9. 2026-07-12 05:46 UTCEPSS rescore
  10. 2026-07-11 23:51 UTCVendor advisory
  11. 2026-07-11 23:51 UTCGHSA enrichment
  12. 2026-07-11 08:27 UTCEPSS rescore
  13. 2026-07-09 19:10 UTCEPSS rescore
  14. 2026-07-09 00:00 UTCVendor advisory
  15. 2026-07-09 00:00 UTCGHSA enrichment
  16. 2026-07-08 15:16 UTCEPSS rescore
  17. 2026-07-07 13:46 UTCEPSS rescore
  18. 2026-07-06 16:27 UTCEPSS rescore
  19. 2026-07-06 02:23 UTCEPSS rescore
  20. 2026-07-05 02:30 UTCEPSS rescore
  21. 2026-07-04 06:31 UTCEPSS rescore
  22. 2026-07-01 15:07 UTCEPSS rescore
  23. 2026-07-01 10:49 UTCVendor advisory
  24. 2026-07-01 10:49 UTCGHSA enrichment
  25. 2026-06-30 23:22 UTCEPSS rescore
  26. 2026-06-29 14:23 UTCVendor advisory
  27. 2026-06-29 14:23 UTCGHSA enrichment
  28. 2026-06-29 14:06 UTCEPSS rescore
  29. 2026-06-29 14:06 UTCEPSS rescore
  30. 2026-06-28 14:07 UTCEPSS rescore
  31. 2026-06-28 06:52 UTCVendor advisory
  32. 2026-06-28 06:51 UTCGHSA enrichment
  33. 2026-06-28 04:56 UTCEPSS rescore
  34. 2026-06-28 04:56 UTCEPSS rescore
  35. 2026-06-27 06:02 UTCVendor advisory
  36. 2026-06-27 06:02 UTCGHSA enrichment
  37. 2026-06-27 03:08 UTCEPSS rescore
  38. 2026-06-26 02:33 UTCVendor advisory
  39. 2026-06-26 02:33 UTCGHSA enrichment
  40. 2026-06-25 13:49 UTCEPSS rescore
  41. 2026-06-25 01:23 UTCEG score recompute▲ 5.50
  42. 2026-06-25 01:23 UTCVendor advisory
  43. 2026-06-25 01:23 UTCGHSA enrichment
  44. 2026-06-24 14:05 UTCEPSS rescore
  45. 2026-06-23 21:33 UTCEPSS rescore
  46. 2026-06-23 21:33 UTCEPSS rescore
  47. 2026-06-22 14:25 UTCEPSS rescore
  48. 2026-06-22 14:25 UTCEPSS rescore
  49. 2026-06-21 14:56 UTCEPSS rescore
  50. 2026-06-21 14:56 UTCEPSS rescore
  51. 2026-06-21 01:59 UTCEPSS rescore
  52. 2026-06-21 01:59 UTCEPSS rescore
  53. 2026-06-19 19:26 UTCEPSS rescore
  54. 2026-06-19 19:26 UTCEPSS rescore
  55. 2026-06-18 17:52 UTCEPSS rescore
  56. 2026-06-18 17:52 UTCEPSS rescore
  57. 2026-06-17 17:53 UTCEPSS rescore
  58. 2026-06-16 17:52 UTCEPSS rescore
  59. 2026-06-16 15:47 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  60. 2026-06-16 04:11 UTCVendor advisory
  61. 2026-06-16 04:11 UTCGHSA enrichment
  62. 2026-06-15 17:49 UTCEPSS rescore
  63. 2026-06-14 23:28 UTCMITRE cvelistV5
  64. 2026-06-13 23:00 UTCEPSS rescore
  65. 2026-06-13 03:38 UTCVendor advisory
  66. 2026-06-13 03:37 UTCGHSA enrichment
  67. 2026-06-12 23:12 UTCEPSS rescore
  68. 2026-06-12 23:12 UTCEPSS rescore
  69. 2026-06-11 14:00 UTCEPSS rescore
  70. 2026-06-10 22:18 UTCEPSS rescore
  71. 2026-06-10 13:22 UTCEPSS rescore
  72. 2026-06-10 13:22 UTCEPSS rescore
  73. 2026-06-10 03:07 UTCGHSA enrichment
  74. 2026-06-08 14:17 UTCEPSS rescore
  75. 2026-06-08 14:17 UTCEPSS rescore

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2026-46003?
CVE-2026-46003 is a medium vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Limit the total number of nodes Currently, the nameserver doesn't limit the number of nodes it handles. This can be an attack vector if a malicious client starts registering random nodes, leading to memory…
When was CVE-2026-46003 disclosed?
CVE-2026-46003 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46003 actively exploited?
CVE-2026-46003 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 97.6% of all scored CVEs.
What is the CVSS score of CVE-2026-46003?
CVE-2026-46003 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-46003?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46003, 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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