VulnerabilityModified
CVE-2020-18734
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.
HIGH 7.5EPSS 1.86%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.86%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.86% probability · 79th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- eclipse/cyclone data distribution service
- Source
- cve@mitre.org
EPSS 1.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/eclipse-cyclonedds/cycloneddsThird Party Advisory
- https://github.com/eclipse-cyclonedds/cyclonedds/issues/476Exploit, Issue Tracking, Third Party Advisory
- https://projects.eclipse.org/projects/iot.cycloneddsRelease Notes, Vendor Advisory
- https://github.com/eclipse-cyclonedds/cycloneddsThird Party Advisory
- https://github.com/eclipse-cyclonedds/cyclonedds/issues/476Exploit, Issue Tracking, Third Party Advisory
- https://projects.eclipse.org/projects/iot.cycloneddsRelease Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.