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CVE-2023-42459— Malformed DATA submessage leads to bad-free error in Fast-DDS

Quick assessment

Affected
eProsima Fast-DDS
Exploitation
Public or AI PoC available; prioritize validation
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是西班牙EProsima公司的一个独立的 Cpp 中间件实现。用于提供 Omg Dds 1.4 和 Omg Rtps 2.2 可互操作的有线协议标准。 EProsima Fast DDS 2.11.1及之前版本存在安全漏洞，该漏洞源于允许攻击者发送特定的DATA子消息触发定位器错误。

CVSS 8.6 · High EPSS 0.83% · P55
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I. Basic Information for CVE-2023-42459

Vulnerability Information
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Vulnerability Title
Malformed DATA submessage leads to bad-free error in Fast-DDS
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). 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
双重释放
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是西班牙EProsima公司的一个独立的 Cpp 中间件实现。用于提供 Omg Dds 1.4 和 Omg Rtps 2.2 可互操作的有线协议标准。 EProsima Fast DDS 2.11.1及之前版本存在安全漏洞，该漏洞源于允许攻击者发送特定的DATA子消息触发定位器错误。
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 >= 2.11.0, <= 2.11.1 -

II. Public POCs for CVE-2023-42459

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 11815 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2023-42459

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Patches & Fixes for CVE-2023-42459 (1)

Vendor Advisories for CVE-2023-42459 (2)

Other References for CVE-2023-42459 (1)

IV. Related Vulnerabilities

Same product: Fast-DDS
Same vendor: eProsima
Same weakness: CWE-415

V. Comments for CVE-2023-42459

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