CVE-2021-43390

HIGH
7.8
CVSS Score
Published: November 14, 2021 at 08:56 PM UTC
Updated: June 17, 2026 at 04:10 AM UTC
1 product affected across 1 vendorDrawings Software Development Kit

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Severity
HIGH7.8
Exploit prediction
EPSS 2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2022.11
Affected range stops below 2022.11, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (4)

x_refsource_MISCThird Party AdvisoryVDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-21-1347/
x_refsource_MISCThird Party AdvisoryVDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-21-1348/
x_refsource_MISCThird Party AdvisoryVDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-21-1362/

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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