Use After Free in Opendesign Drawings Sdk
CVE-2021-32944
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.027 (85.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- Opendesign Drawings Sdk
- Siemens Comos
- Siemens Jt2go
- Siemens Teamcenter Visualization
- Drawings Sdk — versions All versions prior to 2022.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- us-cert.cisa.gov/ics/advisories/icsa-21-159-02 (US Government Resource, Third Party Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-365397.pdf (Patch, Third Party Advisory)
- www.zerodayinitiative.com/advisories/ZDI-21-987/ (VDB Entry, Third Party Advisory)
- www.zerodayinitiative.com/advisories/ZDI-21-990/ (VDB Entry, Third Party Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-32944?
- CVE-2021-32944 is a high-severity vulnerability in Opendesign Drawings Sdk, classified under Use After Free. CVSS score: 7.8/10. Published 2021-06-17.
- How severe is CVE-2021-32944?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-32944 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.