CVE-2025-24797

CRITICALNVD 9.49.4—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.4 under NVD CVSS v3. EPSS exploit probability: 0.9%, top 45% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this weekElevated
9.4
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.4Exploit: NoneExposed: 0

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

Meshtastic is an open source mesh networking solution. A fault in the handling of mesh packets containing invalid protobuf data can result in an attacker-controlled buffer overflow, allowing an attacker to hijack execution flow, potentially resulting in remote code execution. This attack does not require authentication or user interaction, as long as the target device rebroadcasts packets on the default channel. This vulnerability fixed in 2.6.2.

CVSS v3
9.4
EG Score
9.4(medium)
EG Risk
73(Track)
EG Risk 73/100SSVC: 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
Severity94% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
54.8%
KEV
Not listed

Published

April 15, 2025

Last Modified

October 3, 2025

Advisory Details (1)

Auto-updated Jul 16, 2026
Patch available. Sources: github.
github Patch Available

Incorrect handling of malformed packets leads to controlled buffer overflow · Advisory · meshtastic/firmware · GitHub

https://github.com/meshtastic/firmware/security/advisories/GHSA-33hw-xhfh-944r

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 44× 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. 2026-07-24 14:17 UTCEPSS rescore
  2. 2026-07-24 09:11 UTCOSV refresh
  3. 2026-07-23 14:17 UTCEPSS rescore
  4. 2026-07-23 02:51 UTCEG score recompute
  5. 2026-07-22 14:07 UTCEPSS rescore
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  7. 2026-07-21 15:24 UTCEPSS rescore
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  20. 2026-07-12 05:46 UTCEPSS rescore
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  24. 2026-07-09 19:09 UTCEPSS rescore
  25. 2026-07-08 15:14 UTCEPSS rescore
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  1. 2026-07-07 13:45 UTCEPSS rescore
  2. 2026-07-07 04:51 UTCOSV refresh
  3. 2026-07-06 16:26 UTCEPSS rescore
  4. 2026-07-06 02:22 UTCEPSS rescore
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  16. 2026-06-27 03:08 UTCEPSS rescore
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  18. 2026-06-25 13:49 UTCEPSS rescore
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  20. 2026-06-24 14:04 UTCEPSS rescore
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  22. 2026-06-23 21:32 UTCEPSS rescore
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  24. 2026-06-22 14:25 UTCEPSS rescore
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  26. 2026-06-21 14:56 UTCEPSS rescore
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  30. 2026-06-19 19:25 UTCEPSS rescore
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  32. 2026-06-18 17:52 UTCEPSS rescore
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  34. 2026-06-18 15:43 UTCOSV refresh
  35. 2026-06-17 17:52 UTCEPSS rescore
  36. 2026-06-16 17:52 UTCEPSS rescore
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  38. 2026-06-15 17:48 UTCEPSS rescore
  39. 2026-06-14 23:17 UTCEPSS rescore
  40. 2026-06-13 22:59 UTCEPSS rescore
  41. 2026-06-12 23:11 UTCEPSS rescore
  42. 2026-06-11 13:59 UTCEPSS rescore
  43. 2026-06-10 22:18 UTCEPSS rescore
  44. 2026-06-10 13:22 UTCEPSS rescore
  45. 2026-06-08 14:16 UTCEPSS rescore
  46. 2026-06-08 14:16 UTCEPSS rescore
  47. 2026-06-07 15:24 UTCEPSS rescore
  48. 2026-06-07 15:24 UTCEPSS rescore
  49. 2026-06-06 13:47 UTCEPSS rescore
  50. 2026-06-06 13:47 UTCEPSS rescore
  51. 2026-06-05 22:46 UTCEPSS rescore
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  53. 2026-06-05 06:10 UTCEPSS rescore
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  55. 2026-06-04 13:11 UTCEPSS rescore
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  57. 2026-06-02 20:12 UTCEPSS rescore
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  59. 2026-06-01 13:51 UTCEPSS rescore
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  61. 2026-05-31 22:30 UTCEPSS rescore
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  63. 2026-05-31 00:16 UTCEPSS rescore
  64. 2026-05-31 00:16 UTCEPSS rescore
  65. 2026-05-30 07:35 UTCEG score recompute
  66. 2026-05-29 13:44 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCAlainx277/CVE-2025-24797
    First seen Apr 16, 2025

    Meshtastic buffer overflow vulnerability - CVE-2025-24797

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-24797?
CVE-2025-24797 is a critical vulnerability published on April 15, 2025. Meshtastic is an open source mesh networking solution. A fault in the handling of mesh packets containing invalid protobuf data can result in an attacker-controlled buffer overflow, allowing an attacker to hijack execution flow, potentially resulting in remote code execution. This attack does not…
When was CVE-2025-24797 disclosed?
CVE-2025-24797 was first published in the National Vulnerability Database on April 15, 2025, with the most recent update on October 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-24797 actively exploited?
CVE-2025-24797 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 54.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-24797?
CVE-2025-24797 has a CVSS v3 base score of 9.4 (NVD).
How do I remediate CVE-2025-24797?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-24797, 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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