What’s Vulnerable › Vulnerabilities

CVE-2020-18734

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-23 · updated 2026-06-17
• Weakness: CWE-787

Description

A stack buffer overflow in /ddsi/q_bitset.h of Eclipse IOT Cyclone DDS Project v0.1.0 causes the DDS subscriber server to crash.

Affected products

• Eclipse Foundation Eclipse Cyclone DDS: 0.1.0

References

• https://github.com/eclipse-cyclonedds/cyclonedds
• https://github.com/eclipse-cyclonedds/cyclonedds/issues/476
• https://projects.eclipse.org/projects/iot.cyclonedds
• https://github.com/eclipse-cyclonedds/cyclonedds
• https://github.com/eclipse-cyclonedds/cyclonedds/issues/476
• https://projects.eclipse.org/projects/iot.cyclonedds

Get alerted when CVE-2020-18734 or the next vulnerability affects your stack