CVE-2024-10525

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 57.9%, top 1% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Elevated
9.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 58%
CISA-KEV: Not listedEPSS: 58%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

In Eclipse Mosquitto, from version 1.3.2 through 2.0.18, if a malicious broker sends a crafted SUBACK packet with no reason codes, a client using libmosquitto may make out of bounds memory access when acting in its on_subscribe callback. This affects the mosquitto_sub and mosquitto_rr clients.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
82(Track)
EG Risk 82/100SSVC: 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
Severity98% × 45%
Exploitation58% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
99.0%
KEV
Not listed

Published

October 30, 2024

Last Modified

November 3, 2025

Advisory Details (4)

Auto-updated Jun 8, 2026
Patch available. Sources: github_commit.
generic Patch Available

[SECURITY] [DLA 4059-1] mosquitto security update

https://lists.debian.org/debian-lts-announce/2025/02/msg00022.html
generic

Version 2.0.19 released. | Eclipse Mosquitto

https://mosquitto.org/blog/2024/10/version-2-0-19-released/
generic

Heap Buffer Overflow in my_subscribe_callback Function in Eclipse Mosquitto v2.0.18-4-g15292b20 (#190) · Issues · Eclipse Projects Security / vulnerability-reports · GitLab

https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/190
github_commit

commit 8ab20b4ba420 (eclipse-mosquitto/mosquitto)

Fix landed in eclipse-mosquitto/mosquitto commit 8ab20b4ba420 — awaiting tagged release

https://github.com/eclipse-mosquitto/mosquitto/commit/8ab20b4ba4204fdcdec78cb4d9f03c944a6e0e1c

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntumosquitto-dev (1.4.15-2ubuntu0.18.04.3+esm2) @ bionic2026-05-23ubuntu

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.

Weakness Classification(2)

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

All Vendor Advisories

(1)

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 12× in last 7d / 35× 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.

  1. 2026-07-23 14:17 UTCEPSS rescore
  2. 2026-07-23 14:17 UTCEPSS rescore
  3. 2026-07-23 02:31 UTCEG score recompute
  4. 2026-07-22 23:18 UTCEG score recompute▲ 0.70
  5. 2026-07-22 14:07 UTCEPSS rescore
  6. 2026-07-21 15:23 UTCEPSS rescore
  7. 2026-07-20 17:06 UTCEPSS rescore
  8. 2026-07-19 14:30 UTCEPSS rescore
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  13. 2026-07-15 16:56 UTCEPSS rescore
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  15. 2026-07-13 22:28 UTCEPSS rescore
  16. 2026-07-13 21:38 UTCOSV refresh
  17. 2026-07-13 06:11 UTCEPSS rescore
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  19. 2026-07-12 05:45 UTCEPSS rescore
  20. 2026-07-12 05:45 UTCEPSS rescore
  21. 2026-07-11 08:26 UTCEPSS rescore
  22. 2026-07-09 19:09 UTCEPSS rescore
  23. 2026-07-06 02:22 UTCEPSS rescore
  24. 2026-07-06 02:22 UTCEPSS rescore
  25. 2026-07-05 02:29 UTCEPSS rescore
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  1. 2026-07-01 15:05 UTCEPSS rescore
  2. 2026-06-30 23:21 UTCEPSS rescore
  3. 2026-06-30 23:21 UTCEPSS rescore
  4. 2026-06-28 14:06 UTCEPSS rescore
  5. 2026-06-28 14:06 UTCEPSS rescore
  6. 2026-06-28 04:55 UTCEPSS rescore
  7. 2026-06-27 03:07 UTCEPSS rescore
  8. 2026-06-27 03:07 UTCEPSS rescore
  9. 2026-06-25 19:16 UTCOSV refresh
  10. 2026-06-25 13:48 UTCEPSS rescore
  11. 2026-06-23 21:32 UTCEPSS rescore
  12. 2026-06-23 21:31 UTCEPSS rescore
  13. 2026-06-22 14:24 UTCEPSS rescore
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  15. 2026-06-21 01:58 UTCEPSS rescore
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  17. 2026-06-19 19:24 UTCEPSS rescore
  18. 2026-06-19 19:24 UTCEPSS rescore
  19. 2026-06-18 17:51 UTCEPSS rescore
  20. 2026-06-17 17:52 UTCEPSS rescore
  21. 2026-06-17 17:51 UTCEPSS rescore
  22. 2026-06-16 17:51 UTCEPSS rescore
  23. 2026-06-16 17:51 UTCEPSS rescore
  24. 2026-06-15 17:47 UTCEPSS rescore
  25. 2026-06-14 23:16 UTCEPSS rescore
  26. 2026-06-13 22:59 UTCEPSS rescore
  27. 2026-06-13 22:59 UTCEPSS rescore
  28. 2026-06-12 23:11 UTCEPSS rescore
  29. 2026-06-12 23:11 UTCEPSS rescore
  30. 2026-06-11 13:59 UTCEPSS rescore
  31. 2026-06-11 13:59 UTCEPSS rescore
  32. 2026-06-10 22:17 UTCEPSS rescore
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  34. 2026-06-10 13:21 UTCEPSS rescore
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  36. 2026-06-08 14:16 UTCEPSS rescore
  37. 2026-06-08 14:16 UTCEPSS rescore
  38. 2026-06-08 08:58 UTCOSV refresh
  39. 2026-06-07 15:24 UTCEPSS rescore
  40. 2026-06-07 15:24 UTCEPSS rescore
  41. 2026-06-06 13:46 UTCEPSS rescore
  42. 2026-06-06 13:46 UTCEPSS rescore
  43. 2026-06-05 22:46 UTCEPSS rescore
  44. 2026-06-05 22:46 UTCEPSS rescore
  45. 2026-06-05 06:09 UTCEPSS rescore
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  47. 2026-06-04 13:11 UTCEPSS rescore
  48. 2026-06-04 13:11 UTCEPSS rescore
  49. 2026-06-04 13:11 UTCEPSS rescore
  50. 2026-06-02 20:12 UTCEPSS rescore
  51. 2026-06-02 20:12 UTCEPSS rescore
  52. 2026-06-01 13:51 UTCEPSS rescore
  53. 2026-06-01 13:51 UTCEPSS rescore
  54. 2026-05-31 22:30 UTCEPSS rescore
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  56. 2026-05-31 00:15 UTCEPSS rescore
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  58. 2026-05-29 13:43 UTCEPSS rescore
  59. 2026-05-28 13:44 UTCEPSS rescore
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  61. 2026-05-28 13:44 UTCEPSS rescore
  62. 2026-05-27 13:40 UTCEPSS rescore
  63. 2026-05-26 13:43 UTCEPSS rescore
  64. 2026-05-26 13:43 UTCEPSS rescore
  65. 2026-05-26 07:18 UTCEPSS rescore
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  67. 2026-05-26 07:18 UTCEPSS rescore
  68. 2026-05-23 19:21 UTCEG score recompute
  69. 2026-05-23 19:21 UTCVendor advisory
  70. 2026-05-23 19:21 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2024-10525?
CVE-2024-10525 is a critical vulnerability published on October 30, 2024. In Eclipse Mosquitto, from version 1.3.2 through 2.0.18, if a malicious broker sends a crafted SUBACK packet with no reason codes, a client using libmosquitto may make out of bounds memory access when acting in its onsubscribe callback. This affects the mosquittosub and mosquitto_rr clients.
When was CVE-2024-10525 disclosed?
CVE-2024-10525 was first published in the National Vulnerability Database on October 30, 2024, with the most recent update on November 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-10525 actively exploited?
CVE-2024-10525 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-10525?
CVE-2024-10525 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2024-10525?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-10525, 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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