How severe is CVE-2024-45038?

CVE-2024-45038 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-45038 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-45038?

CVE-2024-45038 affects Meshtastic Meshtastic Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-45038?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-45038 have an EU (EUVD) identifier?

Yes. CVE-2024-45038 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-41281.

When was CVE-2024-45038 published?

CVE-2024-45038 was published on 2024-08-27 and last updated on 2026-06-17.

CVE-2024-45038

CVE-2024-45038 is a high-severity vulnerability in Meshtastic Meshtastic Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-755.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-41281
Weakness: CWE-755
Affected product: Meshtastic Meshtastic Firmware
Published: 2024-08-27
Last modified: 2026-06-17

Description

Meshtastic device firmware is a firmware for meshtastic devices to run an open source, off-grid, decentralized, mesh network built to run on affordable, low-power devices. Meshtastic device firmware is subject to a denial of serivce vulnerability in MQTT handling, fixed in version 2.4.1 of the Meshtastic firmware and on the Meshtastic public MQTT Broker. It's strongly suggested that all users of Meshtastic, particularly those that connect to a privately hosted MQTT server, update to this or a more recent stable version right away. There are no known workarounds for this vulnerability.

Frequently asked questions

What is CVE-2024-45038?: Meshtastic device firmware is a firmware for meshtastic devices to run an open source, off-grid, decentralized, mesh network built to run on affordable, low-power devices. Meshtastic device firmware is subject to a denial of serivce vulnerability in MQTT handling, fixed in version 2.4.1 of the Meshtastic firmware and on the Meshtastic public MQTT Broker. It's strongly suggested that all users of Meshtastic, particularly those that connect to a privately hosted MQTT server, update to this or a more recent stable version right away. There are no known workarounds for this vulnerability.
How severe is CVE-2024-45038?: CVE-2024-45038 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-45038 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-45038?: CVE-2024-45038 affects Meshtastic Meshtastic Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-45038?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-45038 have an EU (EUVD) identifier?: Yes. CVE-2024-45038 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-41281.
When was CVE-2024-45038 published?: CVE-2024-45038 was published on 2024-08-27 and last updated on 2026-06-17.

References

https://github.com/meshtastic/firmware/security/advisories/GHSA-3x3r-vw9f-pxq5

Affected products (1)

cpe:2.3:o:meshtastic:meshtastic_firmware:*:*:*:*:*:*:*:*

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