CVE-2021-31494
Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop 16.6.3.84. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DXF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13305.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
An out-of-bounds write in OpenText Brava! Desktop's DXF parsing allows remote code execution via a malicious page or file.
Vulnerability
An out-of-bounds write vulnerability exists in the DXF file parsing routine of OpenText Brava! Desktop version 16.6.3.84. The flaw arises because the application fails to properly validate user-supplied data when processing DXF files, allowing a write past the end of an allocated buffer. The issue is identified as ZDI-CAN-13305 and ZDI-21-634 [1].
Exploitation
An attacker must convince the target user to visit a malicious webpage or open a specially crafted DXF file. No authentication or special network position is required; user interaction is the only prerequisite [1].
Impact
Successful exploitation enables remote code execution in the context of the current user process. The attacker can achieve arbitrary code execution, leading to full compromise of confidentiality, integrity, and availability of the affected system [1].
Mitigation
As of the publication date (2021-06-15), a fixed version has not been publicly disclosed in the available references. Users should monitor OpenText's advisory channels and the ZDI entry for patch announcements [1].
AI Insight generated on May 27, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- Range: = 16.6.3.84
- OpenText/Brava! Desktopv5Range: 16.6.3.84
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- www.zerodayinitiative.com/advisories/ZDI-21-634/mitrex_refsource_MISC
News mentions
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