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Siemens Solid Edge CVE-2026-50059

| EUVDEUVD-2026-56111 HIGH
Out-of-bounds Write (CWE-787)
2026-08-11 siemens GHSA-jw62-q46m-fp5c
7.3
CVSS 4.0 · Vendor: siemens
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Craft malicious DFT file
  2. Delivery
    Deliver to target engineer (email/shared drive)
  3. Exploit
    Victim opens file in Solid Edge
  4. Execution
    Parser triggers out-of-bounds write
  5. Persist
    Corrupt process memory
  6. Impact
    Execute arbitrary code in user process context

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, write limits
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

The victim must open a specially crafted DFT (Solid Edge Draft) file using an unpatched version of Solid Edge SE2025 (before V225.0 Update 15) or SE2026 (before V226.0 Update 7) on a system where the application is locally installed. User interaction is required (UI:P in CVSS 4.0 / UI:R in CVSS 3.1 terms) - the user must actively open the malicious file. No special application configuration or elevated privilege is required by the attacker (PR:N), but success is limited by high attack complexity (AC:H), meaning reliably controlling the memory corruption to achieve arbitrary code execution is non-trivial. Exploitation is bounded to the current user's process context; no scope change to other system components is inherent. The attack does not work remotely without the user opening the file.

Impact

The CVSS 4.0 score of 7.3 with vector AV:L/AC:H/AT:N/PR:N/UI:P reflects a locally-triggered, user-interaction-dependent file-parsing flaw with high complexity, consistent with the need to craft a precisely malformed DFT file that reliably corrupts memory and redirects execution. The high C/I/A impact on the vulnerable system is realistic for a successful OOB write yielding code execution. AC:H is significant: reliable exploitation likely requires overcoming heap layout assumptions or mitigations such as ASLR/DEP, raising the bar for commodity attackers. No EPSS score was provided in the input. The product is not listed in CISA KEV and no public exploit or POC has been identified, making opportunistic mass exploitation unlikely at this time. The primary risk vector is targeted spear-phishing or supply-chain distribution of malicious DFT files to engineers in manufacturing environments. The scope is limited to the process context (S:U in 3.1 terms / SC:N in 4.0), so privilege escalation beyond the logged-in user is not inherent to this CVE.

Exploit ScenarioDerived

An attacker crafts a malformed DFT draft file with a field value that triggers the out-of-bounds write in Solid Edge's parser, then delivers it to a target engineer via email, a shared project repository, or a compromised collaboration platform. When the victim opens the file in an unpatched version of Solid Edge SE2025 or SE2026, the parser writes beyond the allocated buffer, enabling the attacker to gain code execution within the Solid Edge process context. No public POC has been identified at time of analysis, and AC:H suggests reliable exploitation requires non-trivial memory layout control.

Act Now Prioritize within 24-48h. Why: Active threat signals + CRITICAL/HIGH severity.
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv3 – Aug 11, 2026

Out-of-bounds write in Siemens Solid Edge SE2025 and SE2026 allows code execution within the application process when a user opens a specially crafted DFT file. The vulnerability resides in the DFT file parser and can deliver full confidentiality, integrity, and availability impact on the vulnerable system if a victim is induced to open a malicious file. No public exploit identified at time of analysis, and the product is not listed in CISA KEV; however, Siemens has released patched versions and published advisory SSA-621657.

Earlier versions of this analysis (2)
v2 Aug 11, 2026 - 13:52 cvss changed CVSS 7.3

Out-of-bounds write in Siemens Solid Edge SE2025 and SE2026 enables arbitrary code execution when a user opens a specially crafted DFT (draft/drawing) file. The vulnerability resides in the file-parsing engine and allows code execution under the security context of the current process, meaning attacker access is bounded by the privileges of the logged-in user. No public exploit code has been identified and this vulnerability is not listed in CISA KEV; however, file-based code execution vulnerabilities in engineering workstation software are a known vector for targeted industrial espionage campaigns.

v1 Aug 11, 2026 - 13:16 CVSS 7.8

Out-of-bounds write in Siemens Solid Edge's DFT file parser enables code execution in the context of the current user process when a victim opens a specially crafted draft file. Both SE2025 (all versions before V225.0 Update 15) and SE2026 (all versions before V226.0 Update 7) are confirmed affected per Siemens advisory SSA-621657. No public exploit code or active exploitation has been identified at time of analysis, but the file-based delivery vector makes this a practical social-engineering attack path against CAD/engineering workstation users.

RemediationAI

Vendor-released patches are available: upgrade Solid Edge SE2025 to V225.0 Update 15 or later, and Solid Edge SE2026 to V226.0 Update 7 or later, as documented in Siemens advisory SSA-621657 (https://cert-portal.siemens.com/productcert/html/ssa-621657.html). As a compensating control where immediate patching is not feasible, organizations should block receipt of unsolicited DFT files via email gateways and restrict file sharing channels to trusted internal sources only; note this reduces but does not eliminate exposure since DFT files are a normal business artifact in engineering workflows. Additionally, running Solid Edge in a sandboxed or low-privilege user context can limit the blast radius of successful exploitation to the current user's process, reducing lateral movement risk.

Affected VersionsENISA

Solid Edge SE2025 0 <V225.0 Update 15
Solid Edge SE2026 0 <V226.0 Update 7

Affects your stack

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Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Siemens Solid Edge is a professional CAD/CAM application widely used in manufacturing and engineering environments. DFT files are Solid Edge Draft documents used for 2D engineering drawings. The vulnerability is classified as CWE-787 (Out-of-Bounds Write), a memory corruption class where a parser writes data beyond the bounds of an allocated buffer while processing attacker-controlled DFT file structures. This type of flaw typically arises from insufficient length validation of file-embedded field values before writing to a heap or stack buffer, and is a well-understood exploitation primitive in desktop application attack surface. Affected CPEs are cpe:2.3:a:siemens:solid_edge_se2025 (all versions before V225.0 Update 15) and cpe:2.3:a:siemens:solid_edge_se2026 (all versions before V226.0 Update 7).

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (siemens) PRIMARY 7.3 HIGH
CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
vuln.today AI 7.0 HIGH

Local file-open trigger (AV:L), reliable heap exploitation non-trivial (AC:H), no auth needed (PR:N), user must open file (UI:R), process-scoped impact only (S:U).

3.1 AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (siemens).

CVSS VectorVendor: siemens

Attack Vector
Local
Attack Complexity
High
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
High
Vulnerable system: Availability
High
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

4
Analysis Updated
Aug 11, 2026 - 13:53 vuln.today
v3 - CVSS changed
Analysis Updated
Aug 11, 2026 - 13:52 vuln.today
v2 - CVSS changed
CVSS changed
Aug 11, 2026 - 13:22 NVD
7.8 (HIGH) 7.3 (HIGH)
CVE Published
Aug 11, 2026 - 12:20 cve.org
HIGH 7.8

DescriptionCVE.org

A vulnerability has been identified in Solid Edge SE2025 (All versions < V225.0 Update 15), Solid Edge SE2026 (All versions < V226.0 Update 7). The affected applications contains an out of bounds write vulnerability while parsing specially crafted DFT files. This could allow an attacker to execute code in the context of the current process.

Executive ViewAI

Why It Matters

Siemens Solid Edge SE2025 and SE2026 contain a code execution vulnerability affecting all users who handle DFT design files; exploitation requires only a specially crafted file and user interaction, creating material risk to CAD-dependent manufacturing operations, data integrity, and intellectual property stored within affected systems.

Business Impact: High
Compensating Controls

Restrict DFT file transfers to authorized internal channels; implement user training on file source verification and suspicious file handling; disable automatic file opening in Solid Edge; deploy network monitoring and anomaly detection on engineering workstations; isolate CAD networks from general corporate network; evaluate application whitelisting or sandboxing solutions for Solid Edge.

Threat Intelligence Overview

EPSS Score
0.1%
Top 98% exploitable
Prevalence
Medium
professional CAD software common in manufacturing, not universally deployed
Threat Intel
1
1 source
Data Quality
6 sources
Confidence: High
EUVD NVD CVE.org EPSS Vulnrichment CISA VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat Yes
Deciding rule
Active threat signals + CRITICAL/HIGH severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact
High
Technical Impact
Total

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: +10
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.

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Out-of-bounds write in Siemens Solid Edge SE2025 and SE2026 enables code execution within the application's process when

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Out-of-bounds read code execution in Siemens Solid Edge SE2025 and SE2026 allows an attacker to execute arbitrary code i

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Out-of-bounds read in Siemens Solid Edge's PAR file parser enables code execution within the running process when a vict

CVE-2026-50061 HIGH
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Use-after-free in Siemens Solid Edge SE2025 and SE2026 enables arbitrary code execution in the context of the current pr

CVE-2026-50060 HIGH
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Use-after-free memory corruption in Siemens Solid Edge SE2025 and SE2026 allows code execution in the context of the cur

CVE-2026-50058 HIGH
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Out-of-bounds read in Siemens Solid Edge SE2025 and SE2026 enables code execution within the application process when a

CVE-2025-40745 MEDIUM
6.3 Apr 14

Improper TLS certificate validation in Siemens Software Center, Simcenter 3D, Simcenter Femap, Simcenter STAR-CCM+, Soli

CVE-2025-40812 HIGH
7.3 Oct 14

Out-of-bounds read in Siemens Solid Edge SE2024 before V224.0 Update 14 and SE2025 before V225.0 Update 6 can crash the

CVE-2025-40811 HIGH
7.3 Oct 14

Out-of-bounds read in Siemens Solid Edge SE2024 (before V224.0 Update 14) and SE2025 (before V225.0 Update 6) can crash

CVE-2025-40810 HIGH
7.3 Oct 14

Out-of-bounds write in Siemens Solid Edge SE2024 and SE2025 PRT-file parsing lets a crafted part file crash the applicat

CVE-2025-40809 HIGH
7.3 Oct 14

Out-of-bounds write in Siemens Solid Edge's .PRT part-file parser allows an attacker who convinces a user to open a spec

Threat IntelligenceMISP

CISA Advisories
Sources: CISA (public domain)

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