CVE-2025-24797
Published: 15 April 2025
Summary
CVE-2025-24797 is a critical-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Meshtastic Meshtastic Firmware. Its CVSS base score is 9.4 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 14.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Meshtastic, an open source mesh networking solution, contains a vulnerability in its handling of mesh packets that carry invalid protobuf data. The flaw produces an attacker-controlled buffer overflow that can hijack execution flow and potentially permit remote code execution. The issue is tracked as CVE-2025-24797, carries a CVSS score of 9.4, and is associated with CWE-119 and CWE-122 memory-corruption weaknesses. It was corrected in firmware version 2.6.2.
An unauthenticated attacker can exploit the vulnerability simply by sending crafted packets on the default channel; because Meshtastic nodes rebroadcast such packets by default, no user interaction or credentials are required for the attack to reach a target device and achieve code execution.
The official advisory published in the Meshtastic firmware repository states that the defect is resolved in release 2.6.2 and recommends that operators upgrade affected devices to that version. The associated EPSS score has remained flat at 0.0234 since disclosure, indicating no material increase in observed exploitation interest.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-14855
Vulnerability details
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.…
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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.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
CVE-2025-24797 enables unauthenticated remote code execution via network-based buffer overflow in Meshtastic mesh packet handling, directly facilitating exploitation of a public-facing application/network service.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Ongoing control assessments and code testing (static/dynamic analysis, fuzzing) surface memory buffer restriction failures, which are then remediated before release.
Managed runtimes used by platform-independent applications (e.g., JVM, CLR) enforce memory safety, preventing most buffer overflows that require direct memory manipulation.
Memory protections (e.g., W^X, ASLR) make exploitation of buffer-boundary violations far harder to turn into code execution.
Detects exploitation attempts that produce memory corruption, crashes, or anomalous behavior.