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Vulnerability record · CVE-2020-18735 · published 23 August 2021

CVE-2020-18735: Eclipse cyclone data distribution service out-of-bounds write vulnerability

Eclipse · Cyclone Data Distribution Service

A heap buffer overflow in /src/dds_stream.c of Eclipse IOT Cyclone DDS Project v0.1.0 causes the DDS subscriber server to crash.

7.5 CVSS 3.1 High EPSS 1.9% · top 21.6% CWE-787 · Out-of-bounds write
7.5CVSS 3.1 base score, v2 5.0
1.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A heap buffer overflow in /src/dds_stream.c of Eclipse IOT Cyclone DDS Project v0.1.0 causes the DDS subscriber server to crash.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/eclipse-cyclonedds/cyclonedds Third Party Advisory
https://github.com/eclipse-cyclonedds/cyclonedds/issues/501 ExploitIssue TrackingThird Party Advisory
https://projects.eclipse.org/projects/iot.cyclonedds Release NotesVendor Advisory
https://github.com/eclipse-cyclonedds/cyclonedds Third Party Advisory
https://github.com/eclipse-cyclonedds/cyclonedds/issues/501 ExploitIssue TrackingThird Party Advisory
https://projects.eclipse.org/projects/iot.cyclonedds Release NotesVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2025-67109Eclipse cyclone data distribution service vulnerabilityImproper verification of the time certificate in Eclipse Cyclone DDS before v0.10.5 allows attackers to bypass certificate checks and execute command…EPSS 0.33%8.8CVE-2024-10838Eclipse cyclone data distribution service vulnerabilityAn integer underflow during deserialization may allow any unauthenticated user to read out of bounds heap memory. This may result into secret data or…EPSS 0.93%7.5CVE-2020-18734Eclipse cyclone data distribution service out-of-bounds write vulnerabilityA stack buffer overflow in /ddsi/q_bitset.h of Eclipse IOT Cyclone DDS Project v0.1.0 causes the DDS subscriber server to crash.EPSS 1.9%8.8CVE-2026-53266Linux kernel ebtables SNAT out-of-bounds write in ARP rewriteThe ebtables SNAT target rewrites the ARP sender hardware address via skb_store_bits() without first making that range writable. When the ARP SHA byt…KEVEPSS 0.65%analysed8.8CVE-2026-87491Google Chrome V8 out-of-bounds write enables sandbox code executionChrome before 153.0.8010.36 contains an out-of-bounds write in the V8 JavaScript engine. A crafted HTML page can trigger the memory corruption, and b…KEVEPSS 3.1%analysed9.8CVE-2025-25249Fortinet FortiOS and FortiSwitchManager heap buffer overflow via crafted packetsA heap-based buffer overflow (CWE-122/CWE-787) in Fortinet FortiOS 6.4 through 7.6.3 and FortiSwitchManager 7.0 through 7.2.6 lets an unauthenticated…KEVEPSS 3.9%analysed7.8CVE-2026-53362Linux kernel IPv6 UDP paged allocation out-of-bounds write__ip6_append_data() in the Linux kernel mis-accounts fraggap on the paged-allocation path, leaving the linear skb area undersized while pagedlen is o…KEVEPSS 0.71%analysed7.8CVE-2022-0995Linux kernel watch_queue out-of-bounds writeThe Linux kernel's watch_queue event notification subsystem contains an out-of-bounds write (CWE-787) that can overwrite kernel state. A local user c…KEVEPSS 8.8%analysed

Source: NIST National Vulnerability Database (record CVE-2020-18735), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.