CVE-2024-10525
CVSS v3
9.8
CRITICAL
EPSS Score
59.5 %
exploit probability, as of 2026-10-04
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2024-10-30
Frequently asked questions
What is CVE-2024-10525?
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.
Is CVE-2024-10525 actively exploited?
Active exploitation of CVE-2024-10525 has not been confirmed. Its EPSS score was 59.5% on 2026-10-04, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2024-10525?
CVE-2024-10525 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2024-10525 affecting your environment?
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