Double Free in Eclipse Mosquitto
CVE-2024-3935
In Eclipse Mosquito, versions from 2.0.0 through 2.0.18, if a Mosquitto broker is configured to create an outgoing bridge connection, and that bridge connection has an incoming topic configured that makes use of topic remapping, then if the remote connection sends a crafted PUBLISH packet to the broker a double free will occur with a subsequent crash of the broker.
Vulnerability class: Double Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (54.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Eclipse Mosquitto
- Eclipse Foundation Mosquitto — versions 2.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gitlab.eclipse.org/security/vulnerability-reports/-/issues/197 (Exploit, Issue Tracking, Vendor Advisory)
- mosquitto.org/blog/2024/10/version-2-0-19-released/ (Release Notes)
- github.com/eclipse-mosquitto/mosquitto/commit/ae7a804dadac8f2aaedb24336df8496a9… (Patch)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-3935?
- CVE-2024-3935 is a medium-severity vulnerability in Eclipse Mosquitto, classified under Double Free. CVSS score: 6.5/10. Published 2024-10-30.
- How severe is CVE-2024-3935?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2024-3935 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.