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CVE-2021-32946

26
FAUCET Score

CVE-2021-32946 is an improper input validation vulnerability affecting OpenDesign and Siemens products that parse DGN files, including Drawings SDK, JT2Go, Teamcenter Visualization, and COMOS. This flaw, rated 7.8 HIGH, allows an unauthenticated attacker to trigger out-of-bounds issues by tricking a user into opening a malicious DGN file. Successful exploitation could lead to a denial-of-service condition or arbitrary code execution with the privileges of the current process. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2022.4CPE matchmatch criteria
cpe:2.3:a:opendesign:drawings_sdk:*:*:*:*:*:*:*:*
< 10.4.1CPE matchmatch criteria
cpe:2.3:a:siemens:comos:*:*:*:*:*:*:*:*
< 13.2.0.2CPE matchmatch criteria
cpe:2.3:a:siemens:jt2go:*:*:*:*:*:*:*:*
< 13.2.0.2CPE matchmatch criteria
cpe:2.3:a:siemens:teamcenter_visualization:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.80%
Probability of exploitation in next 30 days
EPSS Percentile
85.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0280 is in the 85th percentile among its peer group of 11,621 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cert-portal.siemens.com / productcert/pdf/ssa-155599.pdf
PatchThird Party Advisory
cert-portal.siemens.com / productcert/pdf/ssa-938030.pdf
Third Party Advisory
us-cert.cisa.gov / ics/advisories/icsa-21-159-02
Third Party AdvisoryUS Government Resource
zerodayinitiative.com / advisories/ZDI-21-983
Third Party AdvisoryVDB Entry
zerodayinitiative.com / advisories/ZDI-21-985
Third Party AdvisoryVDB Entry