7.8high
CVE-2021-43390
An Out-of-Bounds Write vulnerability exists when reading a DGN file using Open Design Alliance Drawings SDK before 2022.11.
Published 4 y ago · modified 4 mo ago · JSON
CVSS
7.8
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
1.7%
percentile 77%
Public exploits
0
none known
Summary
An Out-of-Bounds Write vulnerability exists when reading a DGN file using Open Design Alliance Drawings SDK before 2022.11. The specific issue exists within the parsing of DGN files. Crafted data in a DGN file and lack of proper validation of input data can trigger a write operation past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
Exploit prediction (EPSS)
1.70% probability of exploitation in the next 30 days, higher than 77% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
- CWE-787 Out-of-bounds Write
References
- opendesign.com /security-advisories · x_refsource_MISC, x_transferred
- zerodayinitiative.com /advisories/ZDI-21-1348/ · x_refsource_MISC, x_transferred
- zerodayinitiative.com /advisories/ZDI-21-1347/ · x_refsource_MISC, x_transferred
- zerodayinitiative.com /advisories/ZDI-21-1362/ · x_refsource_MISC, x_transferred
Sources
- CVE List: CVE-2021-43390
- NVD: CVE-2021-43390
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