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CVE-2025-24797— Meshtastic incorrectly hands malformed packets leads to controlled buffer overflow

Quick assessment

Affected
meshtastic firmware
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Meshtastic是Meshtastic开源的一种去中心化无线离网网状网络 LoRa 协议。 Meshtastic 2.6.2之前版本存在安全漏洞，该漏洞源于处理无效protobuf数据时存在缓冲区溢出，可能导致远程代码执行。

CVSS 9.4 · Critical EPSS 0.86% · P55

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-24797

Vulnerability Information
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Vulnerability Title
Meshtastic incorrectly hands malformed packets leads to controlled buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Meshtastic 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Meshtastic是Meshtastic开源的一种去中心化无线离网网状网络 LoRa 协议。 Meshtastic 2.6.2之前版本存在安全漏洞，该漏洞源于处理无效protobuf数据时存在缓冲区溢出，可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
meshtastic firmware < 2.6.2 -

II. Public POCs for CVE-2025-24797

# POC Description Source Link Shenlong Link
1 Meshtastic buffer overflow vulnerability - CVE-2025-24797 https://github.com/Alainx277/CVE-2025-24797 POC Details
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 9932 chars
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III. Intelligence Information for CVE-2025-24797

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Vendor Advisories for CVE-2025-24797 (1)

IV. Related Vulnerabilities

Same product: firmware
Same vendor: meshtastic
Same weakness: CWE-119

V. Comments for CVE-2025-24797

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