CVE-2023-40235

Name: CVE-2023-40235
Creator: NVD / NIST
Published: 2023-08-10T23:15:09.957+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.70%

Last modified Jun 17, 2026

CVE-2023-40235 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. An NTLM Hash Disclosure was discovered in ArchiMate Archi before 5.1.0. When parsing the XMLNS value of an ArchiMate project file, if the namespace does not match the expected ArchiMate URL, the parser will access the provided resource. EPSS estimates a 0.70% chance of exploitation in the next 30 days.

Description

An NTLM Hash Disclosure was discovered in ArchiMate Archi before 5.1.0. When parsing the XMLNS value of an ArchiMate project file, if the namespace does not match the expected ArchiMate URL, the parser will access the provided resource. If the provided resource is a UNC path pointing to a share server that does not accept a guest account, the host will try to authenticate on the share by using the current user's session. NOTE: this issue occurs because Archi uses an unsafe configuration of the Eclipse Modeling Framework.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.70%

48.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Opengroup	Archi	< 5.1.0

References

https://github.com/archimatetool/archi/commit/bcab676beddfbeddffecacf755b6692f0b0151f1Patch
https://github.com/archimatetool/archi/compare/release_5.0.2...release_5.1.0Release Notes
https://github.com/archimatetool/archi/issues/946Exploit, Issue Tracking, Vendor Advisory
https://github.com/eclipse-emf/org.eclipse.emf/issues/8Exploit, Issue Tracking, Third Party Advisory
https://github.com/archimatetool/archi/commit/bcab676beddfbeddffecacf755b6692f0b0151f1Patch
https://github.com/archimatetool/archi/compare/release_5.0.2...release_5.1.0Release Notes
https://github.com/archimatetool/archi/issues/946Exploit, Issue Tracking, Vendor Advisory
https://github.com/eclipse-emf/org.eclipse.emf/issues/8Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Aug 10, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-40235?

How severe is CVE-2023-40235?

CVE-2023-40235 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.

How do I fix CVE-2023-40235?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-40235?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST