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CVE-2025-62799— FastDDS's heap buffer overflow in RTPS DATA_FRAG enables unauthenticated DoS (potential RCE)

Quick assessment

Affected
eProsima Fast-DDS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 3.4.1之前版本、3.3.1之前版本和2.6.11之前版本存在安全漏洞，该漏洞源于DATA_FRAG接收路径存在堆缓冲区溢出，可能导致拒绝服务或内存损坏。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.55% · P44
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I. Basic Information for CVE-2025-62799

Vulnerability Information
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Vulnerability Title
FastDDS's heap buffer overflow in RTPS DATA_FRAG enables unauthenticated DoS (potential RCE)
Source: CVE Program / CVE List V5
Vulnerability Description
Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group ). Prior to versions 3.4.1, 3.3.1, and 2.6.11, a heap buffer overflow exists in the Fast-DDS DATA_FRAG receive path. An un authenticated sender can transmit a single malformed RTPS DATA_FRAG packet where `fragmentSize` and `sampleSize` are craft ed to violate internal assumptions. Due to a 4-byte alignment step during fragment metadata initialization, the code write s past the end of the allocated payload buffer, causing immediate crash (DoS) and potentially enabling memory corruption ( RCE risk). Versions 3.4.1, 3.3.1, and 2.6.11 patch the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
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 3.4.1之前版本、3.3.1之前版本和2.6.11之前版本存在安全漏洞，该漏洞源于DATA_FRAG接收路径存在堆缓冲区溢出，可能导致拒绝服务或内存损坏。
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

Vendor Product Affected Versions CPE Subscribe
eProsima Fast-DDS 3.4.0 ~ 3.4.1 -

II. Public POCs for CVE-2025-62799

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III. Intelligence Information for CVE-2025-62799

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Same Patch Batch · eProsima · 2026-02-03 · 8 CVEs total

CVE-2025-62599 8.6 HIGH eprosima Fast DDS affected by Out-of-Memory in readPropertySeq via Manipulated DATA Submes
CVE-2025-62600 8.6 HIGH eprosima Fast DDS affected by Out-of-Memory in readBinaryPropertySeq via Manipulated DATA
CVE-2025-62602 FastDDS has heap buffer overflow in readData via Manipulated DATA Submessage when DDS Secu
CVE-2025-62601 FastDDS has heap buffer overflow in readString via Manipulated DATA Submessage when DDS Se
CVE-2025-62603 FastDDS has Out-of-memory while parsing GenericMessage when DDS Security is enabled
CVE-2025-64098 FastDDS has Out-of-memory in readOctetVector via Manipulated DATA Submessage when DDS Secu
CVE-2025-64438 Fast-DDS: Unbounded GAP range triggers OOM DoS under RELIABLE QoS

IV. Related Vulnerabilities

Same product: Fast-DDS
Same vendor: eProsima
Same weakness: CWE-122

V. Comments for CVE-2025-62799

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