CVE-2025-24797: Meshtastic incorrectly hands malformed packets leads to controlled buffer overflow
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.
Classification
CVE ID: CVE-2025-24797
CVSS Base Severity: CRITICAL
CVSS Base Score: 9.4
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
Problem Types
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-122: Heap-based Buffer OverflowAffected Products
Vendor: meshtastic
Product: firmware
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.25% (probability of being exploited)
EPSS Percentile: 48.37% (scored less or equal to compared to others)
EPSS Date: 2025-04-16 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2025-24797https://github.com/meshtastic/firmware/security/advisories/GHSA-33hw-xhfh-944r