CVE-2023-39948— Uncaught fastcdr exception (Unexpected CDR type received) crashing fastdds
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I. Basic Information for CVE-2023-39948
Vulnerability Information
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Vulnerability Title
Uncaught fastcdr exception (Unexpected CDR type received) crashing fastdds
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 and 2.6.5, the `BadParamException` thrown by Fast CDR is not caught in Fast DDS. This can remotely crash any Fast DDS process. Versions 2.10.0 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
未捕获的异常
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 v2.10.0之前版本存在安全漏洞，该漏洞源于BadParamExceptionFast CDR 抛出的异常不会被 Fast DDS 捕获，导致 Fast DDS 进程崩溃。
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-2023-39948
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- https://github.com/eProsima/Fast-DDS/issues/3422x_refsource_MISC
- https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-x9pj-vrgf-f68fx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2023-39948
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-2023-39534 | 7.5 HIGH | Malformed GAP submessage triggers assertion failure |
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-248
- CVE-2026-41585
ZEBRA: Denial of Service via Interrupted JSON-RPC Requests f - CVE-2026-7183
aligungr UERANSIM Radio Link Simulation Layer rls_pdu.cpp De - CVE-2026-5937
Foxit PDF Editor/Reader's insufficient parameter validation - CVE-2026-35348
uutils coreutils sort Local Denial of Service via Forced UTF - CVE-2026-34944
Wasmtime segfault or unused out-of-sandbox load with `f64x2.
V. Comments for CVE-2023-39948
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