Is CVE-2024-51500 in the CISA KEV catalog?

No. CVE-2024-51500 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-51500?

CVE-2024-51500 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2024-51500?

CVE-2024-51500 has an EPSS score of 0.40% (32th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-51500?

Upgrade meshtastic firmware to 2.5.6 or later.

CVE & CISA-KEV Catalog

CVE-2024-51500

MEDIUM

5.3

CVSS v3

NVD

Description

Meshtastic firmware is a device firmware for the Meshtastic project. The Meshtastic firmware does not check for packets claiming to be from the special broadcast address (0xFFFFFFFF) which could result in unexpected behavior and potential for DDoS attacks on the network. A malicious actor could craft a packet to be from that address which would result in an amplification of this one message into every node on the network sending multiple messages. Such an attack could result in degraded network performance for all users as the available bandwidth is consumed. This issue has been addressed in release version 2.5.6. All users are advised to upgrade. There are no known workarounds for this vulnerability.

CWE-138 CWE-159

How to fix

Remediation Available

meshtastic firmwareNVD

Affected:< 2.5.6Fixed in:2.5.6CVE-2024-51500derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

0.40%probability of exploitation in 30 days

32ndpercentile

Low risk: more likely to be exploited than 32% of all known CVEs.

References

Patch1

github.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-15.