CVE-2026-46452

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-07-24. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Improper Input Validation vulnerability in Apache NimBLE in Mesh Proxy SAR reassembly could result in passing broken data toward application resulting in memory pressure and unstable parsing behavior.

This issue affects Apache NimBLE: through 1.9.0.

Users are recommended to upgrade to version 1.10.0, which fixes the issue.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity53% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

July 24, 2026

Last Modified

July 27, 2026

Advisory Details (2)

Auto-updated Jul 24, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic
https://lists.apache.org/thread/ym80ogxj3398khvxxogxroz4gvgw3ssg
github_commit

commit 593f95227a40 (apache/mynewt-nimble)

Fix landed in apache/mynewt-nimble commit 593f95227a40 — awaiting tagged release

https://github.com/apache/mynewt-nimble/commit/593f95227a4073efde840a9bb34614929dfa7ed1

Vendor Advisories for CVE-2026-46452(1)

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

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 17× in last 7d / 77× 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 103 total refreshes for this CVE.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-30 00:21 UTCEG score recompute
  3. 2026-08-30 00:20 UTCGHSA enrichment
  4. 2026-08-28 21:41 UTCEPSS rescore
  5. 2026-08-28 01:29 UTCEG score recompute
  6. 2026-08-28 01:29 UTCGHSA enrichment
  7. 2026-08-27 14:25 UTCEPSS rescore
  8. 2026-08-26 23:02 UTCEG score recompute
  9. 2026-08-26 23:02 UTCGHSA enrichment
  10. 2026-08-26 14:46 UTCEPSS rescore
  11. 2026-08-25 21:02 UTCEG score recompute
  12. 2026-08-25 21:02 UTCGHSA enrichment
  13. 2026-08-25 13:49 UTCEPSS rescore
  14. 2026-08-24 19:02 UTCEG score recompute
  15. 2026-08-24 19:02 UTCGHSA enrichment
  16. 2026-08-23 17:02 UTCEG score recompute
  17. 2026-08-23 17:02 UTCGHSA enrichment
  18. 2026-08-23 00:19 UTCEPSS rescore
  19. 2026-08-22 15:03 UTCEG score recompute
  20. 2026-08-22 15:03 UTCGHSA enrichment
  21. 2026-08-21 23:49 UTCEPSS rescore
  22. 2026-08-21 13:04 UTCEG score recompute
  23. 2026-08-21 13:04 UTCGHSA enrichment
  24. 2026-08-20 22:55 UTCEPSS rescore
  25. 2026-08-20 10:57 UTCEG score recompute
Show 75 more
  1. 2026-08-20 10:57 UTCGHSA enrichment
  2. 2026-08-19 17:04 UTCEPSS rescore
  3. 2026-08-19 08:58 UTCEG score recompute
  4. 2026-08-19 08:58 UTCGHSA enrichment
  5. 2026-08-18 13:48 UTCEPSS rescore
  6. 2026-08-18 06:52 UTCEG score recompute
  7. 2026-08-18 06:52 UTCGHSA enrichment
  8. 2026-08-17 13:47 UTCEPSS rescore
  9. 2026-08-17 04:46 UTCEG score recompute
  10. 2026-08-17 04:46 UTCGHSA enrichment
  11. 2026-08-16 14:56 UTCEPSS rescore
  12. 2026-08-16 02:47 UTCEG score recompute
  13. 2026-08-16 02:47 UTCGHSA enrichment
  14. 2026-08-16 02:14 UTCEPSS rescore
  15. 2026-08-15 01:30 UTCEPSS rescore
  16. 2026-08-15 00:48 UTCGHSA enrichment
  17. 2026-08-13 22:49 UTCEG score recompute
  18. 2026-08-13 22:49 UTCGHSA enrichment
  19. 2026-08-13 22:00 UTCEPSS rescore
  20. 2026-08-12 20:50 UTCEG score recompute
  21. 2026-08-12 20:50 UTCGHSA enrichment
  22. 2026-08-12 13:51 UTCEPSS rescore
  23. 2026-08-11 18:51 UTCEG score recompute
  24. 2026-08-11 18:51 UTCGHSA enrichment
  25. 2026-08-11 00:00 UTCEPSS rescore
  26. 2026-08-10 16:52 UTCGHSA enrichment
  27. 2026-08-09 14:53 UTCEG score recompute
  28. 2026-08-09 14:53 UTCGHSA enrichment
  29. 2026-08-09 13:46 UTCEPSS rescore
  30. 2026-08-08 16:37 UTCEPSS rescore
  31. 2026-08-08 12:54 UTCEG score recompute
  32. 2026-08-08 12:54 UTCGHSA enrichment
  33. 2026-08-07 10:54 UTCEG score recompute
  34. 2026-08-07 10:54 UTCGHSA enrichment
  35. 2026-08-06 13:47 UTCEPSS rescore
  36. 2026-08-06 08:55 UTCEG score recompute
  37. 2026-08-06 08:55 UTCGHSA enrichment
  38. 2026-08-05 19:17 UTCEPSS rescore
  39. 2026-08-05 06:57 UTCEG score recompute
  40. 2026-08-05 06:57 UTCGHSA enrichment
  41. 2026-08-04 15:10 UTCEPSS rescore
  42. 2026-08-04 10:39 UTCEPSS rescore
  43. 2026-08-04 04:57 UTCEG score recompute
  44. 2026-08-04 04:57 UTCGHSA enrichment
  45. 2026-08-03 10:36 UTCEPSS rescore
  46. 2026-08-03 02:58 UTCEG score recompute
  47. 2026-08-03 02:58 UTCGHSA enrichment
  48. 2026-08-02 02:27 UTCEPSS rescore
  49. 2026-08-02 00:59 UTCEG score recompute
  50. 2026-08-02 00:59 UTCGHSA enrichment
  51. 2026-08-01 04:16 UTCEPSS rescore
  52. 2026-07-31 23:00 UTCGHSA enrichment
  53. 2026-07-30 21:01 UTCEG score recompute
  54. 2026-07-30 21:01 UTCGHSA enrichment
  55. 2026-07-30 16:28 UTCEPSS rescore
  56. 2026-07-30 01:30 UTCEPSS rescore
  57. 2026-07-29 19:01 UTCGHSA enrichment
  58. 2026-07-28 17:02 UTCEG score recompute
  59. 2026-07-28 17:01 UTCGHSA enrichment
  60. 2026-07-28 15:36 UTCEPSS rescore
  61. 2026-07-27 15:00 UTCEG score recompute
  62. 2026-07-27 15:00 UTCGHSA enrichment
  63. 2026-07-27 14:13 UTCEPSS rescore
  64. 2026-07-27 05:03 UTCEG score recompute
  65. 2026-07-27 05:03 UTCGHSA enrichment
  66. 2026-07-26 14:54 UTCEPSS rescore
  67. 2026-07-26 14:54 UTCEPSS rescore
  68. 2026-07-26 03:03 UTCEG score recompute
  69. 2026-07-26 03:02 UTCGHSA enrichment
  70. 2026-07-25 14:18 UTCEPSS rescore
  71. 2026-07-24 18:32 UTCEG score recompute▲ 5.30
  72. 2026-07-24 18:32 UTCGHSA enrichment
  73. 2026-07-24 18:31 UTCMITRE cvelistV5CVSS v3 → 5.3 · severity → MEDIUM
  74. 2026-07-24 16:11 UTCNVD update
  75. 2026-07-24 15:13 UTCMITRE cvelistV5

Frequently asked(5)

What is CVE-2026-46452?
CVE-2026-46452 is a medium vulnerability published on July 24, 2026. Improper Input Validation vulnerability in Apache NimBLE in Mesh Proxy SAR reassembly could result in passing broken data toward application resulting in memory pressure and unstable parsing behavior. This issue affects Apache NimBLE: through 1.9.0. Users are recommended to upgrade to version…
When was CVE-2026-46452 disclosed?
CVE-2026-46452 was first published in the National Vulnerability Database on July 24, 2026, with the most recent update on July 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46452 actively exploited?
CVE-2026-46452 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 55.9% of all scored CVEs.
What is the CVSS score of CVE-2026-46452?
CVE-2026-46452 has a CVSS v3.1 base score of 5.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-46452?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46452, 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.

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