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CVE-2023-41034

27
FAUCET Score

CVE-2023-41034 is a critical XML External Entity (XXE) vulnerability affecting Eclipse Leshan, a Java-based LWM2M device management server and client. This flaw, present in the DDFFileParser and DefaultDDFFileValidator components, allows for arbitrary file disclosure, remote code execution, and denial of service if untrusted DDF files are parsed. With a CVSS score of 9.8, it is easily exploitable over the network with low complexity and no user interaction, leading to high impact on confidentiality, integrity, and availability. While no public exploits or active exploitation have been observed, and community discussion is minimal, affected users are strongly advised to upgrade to versions 1.5.0 or 2.0.0-M13 to mitigate the risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.5.0CPE matchmatch criteria
cpe:2.3:a:eclipse:leshan:*:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:eclipse:leshan:2.0.0:milestone1:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:eclipse:leshan:2.0.0:milestone10:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:eclipse:leshan:2.0.0:milestone11:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:eclipse:leshan:2.0.0:milestone12:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.57%
Probability of exploitation in next 30 days
EPSS Percentile
43.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0057 is in the 23rd percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: org.eclipse.leshan:leshan-coreFixed in: 1.5.0
mavenpatch availablevia ghsa
Product: org.eclipse.leshan:leshan-coreFixed in: 2.0.0-M13

Vendor Advisories (1)

mavenGHSA-wc9j-gc65-3cm7medium

DDFFileParser is vulnerable to XXE Attacks

Aug 31, 2023

References

github.com / eclipse-leshan/leshan/commit/29577d2879ba8e7674c3b216a7f01193fc7ae013
Patch
github.com / eclipse-leshan/leshan/commit/4d3e63ac271a817f81fba3e3229c519af7a3049c
Patch
github.com / eclipse-leshan/leshan/security/advisories/GHSA-wc9j-gc65-3cm7
MitigationThird Party Advisory
github.com / eclipse-leshan/leshan/wiki/Adding-new-objects
Product
owasp.org / www-community/vulnerabilities/XML_External_Entity_(XXE)_Processing
Not Applicable