CVE-2021-32946
An improper check for unusual or exceptional conditions issue exists within the parsing DGN files from Drawings SDK (Version 2022.4 and prior) resulting from the lack of proper validation of the user-supplied data.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.80%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An improper check for unusual or exceptional conditions issue exists within the parsing DGN files from Drawings SDK (Version 2022.4 and prior) resulting from the lack of proper validation of the user-supplied data. This may result in several of out-of-bounds problems and allow attackers to cause a denial-of-service condition or execute code in the context of the current process.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 2.80% probability · 86th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-754
- Affected
- opendesign/drawings sdk · siemens/comos · siemens/jt2go · siemens/teamcenter visualization
- Source
- ics-cert@hq.dhs.gov
EPSS 2.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdfPatch, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-938030.pdfThird Party Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02Third Party Advisory, US Government Resource
- https://www.zerodayinitiative.com/advisories/ZDI-21-983/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-985/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-938030.pdfThird Party Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02Third Party Advisory, US Government Resource
- https://www.zerodayinitiative.com/advisories/ZDI-21-983/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-985/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.