CVE-2021-31511
Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop Build 16.6.4.55. 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 PDF 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-13676.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
OpenText Brava! Desktop Build 16.6.4.55 has an out-of-bounds write in PDF parsing leading to remote code execution with user interaction.
Vulnerability
The vulnerability exists in OpenText Brava! Desktop Build 16.6.4.55 during the parsing of PDF files. The lack of proper validation of user-supplied data leads to a write past the end of an allocated buffer. This flaw is present in the PDF parsing component. [1]
Exploitation
An attacker can exploit this vulnerability by convincing a user to visit a malicious page or open a malicious file. No authentication is required, but user interaction is necessary. The attacker can craft a PDF file that triggers the out-of-bounds write when parsed by Brava! Desktop. [1]
Impact
Successful exploitation allows the attacker to execute arbitrary code in the context of the current process. This can lead to full compromise of the affected system, including confidentiality, integrity, and availability. [1]
Mitigation
As of the publication date (2021-06-29), no patch or fixed version has been disclosed in the available references. Users should apply any updates from OpenText when available. The vulnerability is not listed in CISA's Known Exploited Vulnerabilities catalog as of the time of writing. [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: = Build 16.6.4.55
- OpenText/Brava! Desktopv5Range: Build 16.6.4.55
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- www.zerodayinitiative.com/advisories/ZDI-21-689/mitrex_refsource_MISC
News mentions
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