HOMEVULNERABILITIESCVE-2021-32940
HIGH

CVE-2021-32940

CWE-125Published: June 17, 2021· Updated: Jun 17, 2026

7.1
CVSS v3.1

Official Description

An out-of-bounds read issue exists in the DWG file-recovering procedure in the Drawings SDK (All versions prior to 2022.5) resulting from the lack of proper validation of user-supplied data. This can result in a read past the end of an allocated buffer and allow attackers to cause a denial-of-service condition or read sensitive information from memory locations.

NVD Source

Technical Analysis

CVE-2021-32940 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), availability disruption (denial of service), with a CVSS base score of 7.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Affected Vendors & Products

opendesign1 product(s)
drawings sdk
siemens3 product(s)
comosjt2goteamcenter visualization
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf
PATCHhttps://cert-portal.siemens.com/productcert/pdf/ssa-365397.pdf
PATCHhttps://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf
PATCHhttps://cert-portal.siemens.com/productcert/pdf/ssa-365397.pdf
ADVISORYhttps://us-cert.cisa.gov/ics/advisories/icsa-21-159-02
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-986/
ADVISORYhttps://us-cert.cisa.gov/ics/advisories/icsa-21-159-02
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-986/

All References (8)

→
https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdfPatch · Third Party Advisory
→
https://cert-portal.siemens.com/productcert/pdf/ssa-365397.pdfPatch · Third Party Advisory
→
https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02Third Party Advisory · US Government Resource
→
https://www.zerodayinitiative.com/advisories/ZDI-21-986/Third Party Advisory · VDB Entry
→
https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdfPatch · Third Party Advisory
→
https://cert-portal.siemens.com/productcert/pdf/ssa-365397.pdfPatch · Third Party Advisory
→
https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02Third Party Advisory · US Government Resource
→
https://www.zerodayinitiative.com/advisories/ZDI-21-986/Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2021-32940
CVSS Score7.1 / 10
SeverityHIGH
WeaknessCWE-125
CISA KEVNo
Affected2 vendor(s)
PublishedJun 17, 2021

Related CVEs (CWE-125)

CVE-2009-2523
10.0
CVE-2013-0767
10.0
CVE-2021-41556
10.0
CVE-2021-21777
10.0
CVE-2017-14451
10.0
CVE-2023-26489
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-32940 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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