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TI-2025-18514 Aliases CVE-2025-24797

Meshtastic incorrectly hands malformed packets leads to controlled buffer overflow

Priority MEDIUM 51CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00899 59th percentileScored 2026-11-07
Fix Fixed firmware (meshtastic): 2.6.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
meshtasticfirmwarebefore 2.6.22.6.2Patch availableCNA
  • firmware Vendormeshtastic Affected before 2.6.2 Fixed in 2.6.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:meshtastic:meshtastic_firmware:*:*:*:*:*:*:*:*before 2.6.2Vulnerablemeshtastic
  • cpe:2.3:o:meshtastic:meshtastic_firmware:*:*:*:*:*:*:*:* Versions before 2.6.2 Vulnerable ·meshtastic

Remediation

  • Fix · CNA firmware (meshtastic) Fixed in 2.6.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-24797

References

Advisory 1

  • TI-2025-34949 Meshtastic allows crafting of specific NodeInfo packets that overwrite any publicKey saved in the NodeDB CVSS 3.1CRITICAL 9.8
  • TI-2025-34948 In Meshtastic, an attacker can spoof licensed amateur flag for a node CVSS 3.1HIGH 8.2
  • TI-2024-34421 Failure to check for packets from the broadcast address allows potential DDoS… CVSS 3.1HIGH 7.5
  • TI-2025-33563 Meshtastic allows Command Injection in GitHub Action CVSS 3.1HIGH 8.0
  • TI-2025-18515 Meshtastic crashes via an unimplemented routing module reply CVSS 3.1MEDIUM 6.5
  • TI-2025-33554 Meshtastic firmware allows forged DMs with no PKC to show up as encrypted CVSS 3.1MEDIUM 5.3
See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences