CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2019-11777
High (7.5) in eclipse paho java client. EPSS 0.8% chance of exploitation in the next 30 days. Fixed in org.eclipse.paho:org.eclipse.paho.client.mqttv3 1.2.1.
In the Eclipse Paho Java client library version 1.2.0, when connecting to an MQTT server using TLS and setting a host name verifier, the result of that verification is not checked. This could allow one MQTT server to impersonate another and provide the client library with incorrect information.
Severity
- EPSS
- 0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-346, CWE-755
- Published
- Modified
- Record from
- the NVD, synced
Affected
- eclipse:paho_java_client
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-63qc-p2x4-9fgf | Maven | org.eclipse.paho:org.eclipse.paho.client.mqttv3 | <1.2.1 | 1.2.1 |