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Full vulnerability report · 2021
CVE-2021-25175High confidence

This can allow attackers to cause a crash, potentially enabling a denial of service attack (Crash, Exit, or Restart)

Unknown · Unknown

7.8HighCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 3 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 2.63% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Unknown Unknown and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 3 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

2 current
SSA-155599 · CSAF 2.0 · revision 1 · finalSiemens ProductCERTSSA-155599: File Parsing Vulnerabilities in COMOS
1 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • COMOS
Summary
Open Design Alliance Drawings SDK before 2021.11 contains a type conversion vulnerability while parsing specially crafted DXF and DWG files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-11912, ZDI-CAN-11993, ZDI-CAN-11988)
Remediation
Update to V10.4.1 or later version
SSA-663999 · CSAF 2.0 · revision 2 · finalSiemens ProductCERTSSA-663999: Multiple File Parsing Vulnerabilities in JT2Go and Teamcenter Visualization before V13.1.0.1
2 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • JT2Go
  • Teamcenter Visualization
Summary
An issue was discovered in Open Design Alliance Drawings SDK before 2021.11. A Type Conversion issue exists when rendering malformed .DXF and .DWG files. This could allow attackers to cause a crash, potentially enabling a denial of service attack (Crash, Exit, or Restart). (ZDI-CAN-11912, ZDI-CAN-11993, ZDI-CAN-11988)
Remediation
Update to V13.1.0.1 or later version
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2021-12086

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 3 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

An issue was discovered in Open Design Alliance Drawings SDK before 2021.11. A Type Conversion issue exists when rendering malformed .DXF and .DWG files. This can allow attackers to cause a crash, potentially enabling a denial of service attack (Crash, Exit, or Restart).

What

An issue was discovered in Open Design Alliance Drawings SDK before 2021.11. A Type Conversion issue exists when rendering malformed .DXF and .DWG files. This can allow attackers to cause a crash, potentially enabling a denial of service attack (Crash, Exit, or Restart).

Why

The product does not correctly convert an object, resource, or structure from one type to a different type.

How

An attacker operating through local access may attempt exploitation without authentication after a user interaction. If successful, the issue may disrupt the affected service.

What

An issue was discovered in Open Design Alliance Drawings SDK before 2021.11. A Type Conversion issue exists when rendering malformed .DXF and .DWG files. This can allow attackers to cause a crash, potentially enabling a denial of service attack (Crash, Exit, or Restart).

Why

The product does not correctly convert an object, resource, or structure from one type to a different type.

How

An attacker operating through local access may attempt exploitation without authentication after a user interaction. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
local access → Incorrect Type Conversion or Cast → disrupt the affected service
Attack surface
Local
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-704 ↗

CWE-704: Incorrect Type Conversion or Cast. The product does not correctly convert an object, resource, or structure from one type to a different type.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
UnauthenticatedDenial of serviceCWE-704
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

Cyber Security Agency of Singapore · English · CSA-SB-20210120Security Bulletin 20 Jan 2021

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 20 Jan 2021, published on 20 January 2021. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-216Multiples vulnérabilités dans les produits Siemens

d?id=CVE-2021-22939 Référence CVE CVE-2021-22940 https://www.cve.org/CVERecord?id=CVE-2021-22940 Référence CVE CVE-2021-22945 https://www.cve.org/CVERecord?id=CVE-2021-22945 Référence CVE CVE-2021-22946 https://www.cve.org/CVERecord?id=CVE-2021-22946 Référence CVE CVE-2021-22947 https://www.cve.org/CVERecord?id=CVE-2021-22947 Référence CVE CVE-2021-23362 https://www.cve.org/CVERecord?id=CVE-2021-23362 Référence CVE CVE-2021-23840 https://www.cve.org/CVERecord?id=CVE-2021-23840 Référence CVE CVE-2021-25173 https://www.cve.org/CVERecord?id=CVE-2021-25173 Référence CVE CVE-2021-25174 https://www.cve.org/CVERecord?id=CVE-2021-25174 Référence CVE CVE-2021-25175 https://www.cve.org/CVERecord?id=CVE-2021-25175 Référence CVE CVE-2021-25176 https://www.cve.org/CVERecord?id=CVE-2021-25176 Référence CVE CVE-2021-25177 https://www.cve.org/CVERecord?id=CVE-2021-25177 Référence CVE CVE-2021-25178 https://www.cve.org/CVERecord?id=CVE-2021-25178 Référence CVE CVE-2021-25214 https://www.cve.org/CVERecord?id=CVE-2021-25214 Référence CVE CVE-2021-25215 https://www.cve.org/CVERecord?id=CVE-2021-25215 Référence CVE CVE-2021-25216 https://www.cve.org/CVERecord?id=CVE-2021-25216 Référence CVE CVE-2021-25217 https://www.cve.org/CVERecord?id=CVE-2021-25217 Référence CVE CVE-2021-25219 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2021-AVI-094Multiples vulnérabilités dans les produits Siemens

d?id=CVE-2020-27005 Référence CVE CVE-2020-27006 https://www.cve.org/CVERecord?id=CVE-2020-27006 Référence CVE CVE-2020-27007 https://www.cve.org/CVERecord?id=CVE-2020-27007 Référence CVE CVE-2020-27008 https://www.cve.org/CVERecord?id=CVE-2020-27008 Référence CVE CVE-2020-28388 https://www.cve.org/CVERecord?id=CVE-2020-28388 Référence CVE CVE-2020-28392 https://www.cve.org/CVERecord?id=CVE-2020-28392 Référence CVE CVE-2020-28394 https://www.cve.org/CVERecord?id=CVE-2020-28394 Référence CVE CVE-2021-25173 https://www.cve.org/CVERecord?id=CVE-2021-25173 Référence CVE CVE-2021-25174 https://www.cve.org/CVERecord?id=CVE-2021-25174 Référence CVE CVE-2021-25175 https://www.cve.org/CVERecord?id=CVE-2021-25175 Référence CVE CVE-2021-25176 https://www.cve.org/CVERecord?id=CVE-2021-25176 Référence CVE CVE-2021-25177 https://www.cve.org/CVERecord?id=CVE-2021-25177 Référence CVE CVE-2021-25178 https://www.cve.org/CVERecord?id=CVE-2021-25178 Référence CVE CVE-2021-25666 https://www.cve.org/CVERecord?id=CVE-2021-25666 Gestion détaillée du document le 09 février 2021 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2021-002746Open Design Alliance Drawings SDK における不正な型変換に関する脆弱性

Open Design Alliance Drawings SDK には、不正な型変換に関する脆弱性が存在します。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
COMOS
Fixed
Update to V10.4.1 or later version
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 18 Jan 2021 · Last source change 3 Aug 2024, 19:56 UTC · CWE-704 · Incorrect Type Conversion or Cast

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2021-12086
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    n/a · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    n/a · Fixed: Update to V10.4.1 or later version
    Siemens ProductCERT ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2021-12086↗Patch or update reference↗CVE authority or vendor reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2021-25175 · cve.blacktree.nl