CVE-2023-42459
highpriority · track · 30EPSS 0.010 · 63 %ileEURUUSEPSS · scored 2026-10-27
Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group). In affected versions specific DATA submessages can be sent to a discovery locator which may trigger a free error. This can remotely crash any Fast-DDS process. The call to free() could potentially leave the pointer in the attackers control which could lead to a double free. This issue has been addressed in versions 2.12.0, 2.11.3, 2.10.3, and 2.6.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–8.6
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (11)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (14)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-42459/cnnvd
- https://github.com/eProsima/Fast-DDS/issues/3207cnnvd
- https://github.com/eProsima/Fast-DDS/pull/3824cnnvd
- https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-gq8g-fj58-22gmcnnvd
- https://www.auscert.org.au/bulletins/ESB-2023.7113cnnvd
- https://www.debian.org/security/2023/dsa-5568cnnvd
- https://github.com/eProsima/Fast-DDS/issues/3207enisa_euvd
- https://github.com/eProsima/Fast-DDS/pull/3824enisa_euvd
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