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CVE-2024-10525

Eclipse Mosquitto buffer overflow

9.8 CRITICALPublic exploitEPSS 59.5%
  1. Published30 Oct 2024

Description

In Eclipse Mosquitto, from version 1.3.2 through 2.0.18, if a malicious broker sends a crafted SUBACK packet with no reason codes, a client using libmosquitto may make out of bounds memory access when acting in its on_subscribe callback. This affects the mosquitto_sub and mosquitto_rr clients.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Eclipse Mosquitto≥ 1.3.2 < 2.0.19

Remediation

Fixed in
Eclipse Mosquitto≥ 2.0.19

References

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Frequently asked

Is CVE-2024-10525 being actively exploited?

CVE-2024-10525 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 59.5%.

How severe is CVE-2024-10525?

CVE-2024-10525 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 59.5% probability of exploitation.

Which products are affected by CVE-2024-10525?

Affected products include Eclipse Mosquitto.

How do I fix CVE-2024-10525?

Upgrade affected software to a fixed version, for example Eclipse Mosquitto 2.0.19 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-10525 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.