Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2023-39948— Uncaught fastcdr exception (Unexpected CDR type received) crashing fastdds

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。

CVSS 7.5 · High EPSS 1.04% · P63

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2023-39948

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Uncaught fastcdr exception (Unexpected CDR type received) crashing fastdds
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未捕获的异常
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 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

Vendor Product Affected Versions CPE Subscribe
eProsima Fast-DDS < 2.6.5 -

II. Public POCs for CVE-2023-39948

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9815 chars
Pro+ exclusive includes:
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
100+ AI POC generations per month

III. Intelligence Information for CVE-2023-39948

请登录查看更多情报信息。

Vendor Advisories for CVE-2023-39948 (2)

Other References for CVE-2023-39948 (2)

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
Same vendor: eProsima
Same weakness: CWE-248

V. Comments for CVE-2023-39948

No comments yet

Leave a comment