CVE-2023-39534— Malformed GAP submessage triggers assertion failure
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I. Basic Information for CVE-2023-39534
Vulnerability Information
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Vulnerability Title
Malformed GAP submessage triggers assertion failure
Source: NVD (National Vulnerability Database)
Vulnerability Description
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.10.0, 2.9.2, and 2.6.5, a malformed GAP submessage can trigger assertion failure, crashing FastDDS. Version 2.10.0, 2.9.2, and 2.6.5 contain a patch for this issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
可达断言
Source: NVD (National Vulnerability Database)
Vulnerability Title
eProsima Fast DDS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
eProsima Fast DDS是eProsima公司的OMG（对象管理组）DDS（数据分发服务）标准的 C++ 实现。 eProsima Fast DDS 2.9.1版本存在安全漏洞，该漏洞源于格式错误的 GAP 子消息可能会触发断言失败，从而导致 FastDDS 崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2023-39534
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- https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-fcr6-x23w-94wpx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2023-39534
Same Patch Batch · eProsima · 2023-08-11 · 6 CVEs total
| CVE-2023-39947 | 8.2 HIGH | Another heap overflow in push_back_helper |
| CVE-2023-39946 | 8.2 HIGH | Heap overflow in push_back_helper due to a CDR message |
| CVE-2023-39945 | 8.2 HIGH | Malformed serialized data in a data submessage leads to unhandled exception |
| CVE-2023-39949 | 7.5 HIGH | Improper validation of sequence numbers leading to remotely reachable assertion failure |
| CVE-2023-39948 | 7.5 HIGH | Uncaught fastcdr exception (Unexpected CDR type received) crashing fastdds |
IV. Related Vulnerabilities
Same product: Fast-DDS
- CVE-2025-64438
Fast-DDS: Unbounded GAP range triggers OOM DoS under RELIABL - CVE-2025-64098
FastDDS has Out-of-memory in readOctetVector via Manipulated - CVE-2025-62799
FastDDS's heap buffer overflow in RTPS DATA_FRAG enables una - CVE-2025-62603
FastDDS has Out-of-memory while parsing GenericMessage when - CVE-2025-62602
FastDDS has heap buffer overflow in readData via Manipulated
Same vendor: eProsima
- CVE-2025-64438
Fast-DDS: Unbounded GAP range triggers OOM DoS under RELIABL - CVE-2025-64098
FastDDS has Out-of-memory in readOctetVector via Manipulated - CVE-2025-62799
FastDDS's heap buffer overflow in RTPS DATA_FRAG enables una - CVE-2025-62603
FastDDS has Out-of-memory while parsing GenericMessage when - CVE-2025-62602
FastDDS has heap buffer overflow in readData via Manipulated
Same weakness: CWE-617
- CVE-2026-41584
ZEBRA: rk Identity Point Panic in Transaction Verification - CVE-2026-20450
Qualcomm Modem MSV-6100远程拒绝服务漏洞 - CVE-2026-41485
Kyverno Controller Denial of Service via forEach Mutation Pa - CVE-2026-34067
nimiq-transaction vulnerable to panic via `HistoryTreeProof` - CVE-2026-34063
network-libp2p: Peer can crash the node by opening discovery
V. Comments for CVE-2023-39534
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