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, potentiall…
Vulnerability class: Buffer Overflow
EPSS: 0.023 (85.1th 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
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/meshtastic/firmware/security/advisories/GHSA-33hw-xhfh-944r (x_refsource_CONFIRM)
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 2025-04-14.
- 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.