HOMEVULNERABILITIESCVE-2021-32944
HIGH

CVE-2021-32944

CWE-416Published: June 17, 2021· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

A use-after-free issue exists in the DGN file-reading procedure in the Drawings SDK (All versions prior to 2022.4) resulting from the lack of proper validation of user-supplied data. This can result in a memory corruption or arbitrary code execution, allowing attackers to cause a denial-of-service condition or execute code in the context of the current process.

NVD Source

Technical Analysis

CVE-2021-32944 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), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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-21-987/
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-990/
ADVISORYhttps://us-cert.cisa.gov/ics/advisories/icsa-21-159-02
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-987/
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-990/

All References (10)

→
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-21-987/Third Party Advisory · VDB Entry
→
https://www.zerodayinitiative.com/advisories/ZDI-21-990/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-21-987/Third Party Advisory · VDB Entry
→
https://www.zerodayinitiative.com/advisories/ZDI-21-990/Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2021-32944
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-416
CISA KEVNo
Affected2 vendor(s)
PublishedJun 17, 2021

Related CVEs (CWE-416)

CVE-2012-4212
10.0
CVE-2011-0982
10.0
CVE-2010-3116
10.0
CVE-2010-2302
10.0
CVE-2010-3252
10.0
CVE-2012-4218
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-32944 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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