CVE-2021-32946
CVE-2021-32946 is a high-severity vulnerability in Opendesign Drawings Sdk with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-754.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 3% (85th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-754
- Affected product: Opendesign Drawings Sdk
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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. 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.
- How severe is CVE-2021-32946?
- CVE-2021-32946 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-32946 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-32946?
- CVE-2021-32946 primarily affects Opendesign Drawings Sdk. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-32946?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-32946 published?
- CVE-2021-32946 was published on 2021-06-17 and last updated on 2026-06-17.
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-938030.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02
- https://www.zerodayinitiative.com/advisories/ZDI-21-983/
- https://www.zerodayinitiative.com/advisories/ZDI-21-985/
Affected products (4)
- cpe:2.3:a:opendesign:drawings_sdk:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:comos:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:jt2go:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:teamcenter_visualization:*:*:*:*:*:*:*:*
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