What’s Vulnerable › Vulnerabilities

CVE-2023-40235

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-08-10 · updated 2026-06-17

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.

Affected products

• Opengroup Archi: before 5.1.0 — fixed in 5.1.0

How to fix

Upgrade to a fixed version: Opengroup Archi 5.1.0. Check the vendor advisory for mitigations.

References

• https://github.com/archimatetool/archi/commit/bcab676beddfbeddffecacf755b6692f0b0151f1
• https://github.com/archimatetool/archi/compare/release_5.0.2...release_5.1.0
• https://github.com/archimatetool/archi/issues/946
• https://github.com/eclipse-emf/org.eclipse.emf/issues/8
• https://github.com/archimatetool/archi/commit/bcab676beddfbeddffecacf755b6692f0b0151f1
• https://github.com/archimatetool/archi/compare/release_5.0.2...release_5.1.0
• https://github.com/archimatetool/archi/issues/946
• https://github.com/eclipse-emf/org.eclipse.emf/issues/8

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