Buffer overflow in Meshtastic Firmware
CVE-2025-24797
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.
Vulnerability class: Buffer Overflow
EPSS: 0.009 (56.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H.
Affected products
- Meshtastic Firmware — versions < 2.6.2
- Meshtastic Meshtastic_firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-24797?
- CVE-2025-24797 is a critical-severity vulnerability in Meshtastic Firmware, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.4/10. Published 2025-04-15.
- How severe is CVE-2025-24797?
- Critical severity. CVSS v3 base score is 9.4 out of 10.
- Is CVE-2025-24797 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.