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7.5
HIGH CVSS 3.1
CVE-2021-41040
Eclipse Wakaama CoAP Unsanitized Network Data Vulnerability
Description

In Eclipse Wakaama, ever since its inception until 2021-01-14, the CoAP parsing code does not properly sanitize network-received data.

INFO

Published Date :

Feb. 1, 2022, 12:15 p.m.

Last Modified :

Nov. 21, 2024, 6:25 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2021-41040 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Eclipse wakaama
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 HIGH [email protected]
Public PoC/Exploit Available at Github

CVE-2021-41040 has a 8 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-41040.

URL Resource
https://bugs.eclipse.org/bugs/show_bug.cgi?id=577968 Exploit Issue Tracking Patch Vendor Advisory
https://github.com/eclipse/wakaama/pull/640 Patch Third Party Advisory
https://bugs.eclipse.org/bugs/show_bug.cgi?id=577968 Exploit Issue Tracking Patch Vendor Advisory
https://github.com/eclipse/wakaama/pull/640 Patch Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-41040 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-41040 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
mukulele/wakaama

None

CMake HTML C Python Shell

Updated: 1 month, 1 week ago
0 stars 0 fork 0 watcher
Born at : Sept. 16, 2025, 6:51 a.m. This repo has been linked 2 different CVEs too.
Profile Photo
Hongsungchae/LwM2M_wakaama

None

CMake HTML Makefile C

Updated: 1 month, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Sept. 15, 2025, 6:05 a.m. This repo has been linked 2 different CVEs too.
Profile Photo
mukulele/eclipse-wakaama

None

CMake HTML C Python Shell

Updated: 2 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : Aug. 27, 2025, 3 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
mukulele/lwm2m-signalk-wakaama

Connect Signalk Path to a lwm2mserver with wakaama

CMake HTML C Shell Python

Updated: 2 months ago
1 stars 0 fork 0 watcher
Born at : Aug. 24, 2025, 7:57 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
2lambda123/eclipse-wakaama-wakaama

None

CMake HTML C Python Shell

Updated: 1 year, 4 months ago
0 stars 0 fork 0 watcher
Born at : June 5, 2024, 7:24 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
Friendly-Technologies/Friendly-Wakaama

None

CMake HTML C Python Shell

Updated: 9 months, 2 weeks ago
2 stars 0 fork 0 watcher
Born at : May 30, 2024, 2:33 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
xpippi/wakaama

None

CMake HTML C Python Shell

Updated: 2 years, 6 months ago
0 stars 0 fork 0 watcher
Born at : April 17, 2023, 9:05 a.m. This repo has been linked 2 different CVEs too.
Profile Photo
eclipse-wakaama/wakaama

Eclipse Wakaama is a C implementation of the Open Mobile Alliance's LightWeight M2M protocol (LwM2M).

lwm2m-server lwm2m lwm2m-client c iot coap internet-of-things device-management eclipseiot lwm2m-protocol

HTML C CMake Shell Python

Updated: 2 months, 3 weeks ago
523 stars 360 fork 360 watcher
Born at : April 18, 2014, 9:37 a.m. This repo has been linked 2 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-41040 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2021-41040 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://bugs.eclipse.org/bugs/show_bug.cgi?id=577968
    Added Reference https://github.com/eclipse/wakaama/pull/640
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Feb. 04, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://bugs.eclipse.org/bugs/show_bug.cgi?id=577968 No Types Assigned https://bugs.eclipse.org/bugs/show_bug.cgi?id=577968 Exploit, Issue Tracking, Patch, Vendor Advisory
    Changed Reference Type https://github.com/eclipse/wakaama/pull/640 No Types Assigned https://github.com/eclipse/wakaama/pull/640 Patch, Third Party Advisory
    Added CWE NIST CWE-125
    Added CPE Configuration OR *cpe:2.3:a:eclipse:wakaama:1.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 01, 2022

    Action Type Old Value New Value
    Removed CWE Eclipse Foundation CWE-126
    Removed CWE Eclipse Foundation CWE-476
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.64 }} -0.55%

score

0.69995

percentile