CVE-2018-6639
Description
An out-of-bounds write in Design Science MathType 6.9c can lead to remote code execution when opening a crafted file.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
An out-of-bounds write in Design Science MathType 6.9c can lead to remote code execution when opening a crafted file.
Vulnerability
A size used by memmove is read from the input file, leading to an out-of-bounds write. The vulnerability exists in Design Science MathType version 6.9c. The issue is fixed in version 6.9d [1].
Exploitation
An attacker can craft a malicious input file that specifies an incorrect size for the memmove operation. When a user opens the crafted file in MathType 6.9c, the out-of-bounds write occurs. No additional authentication or network position is required beyond user interaction.
Impact
Successful exploitation could allow an attacker to execute arbitrary code in the context of the MathType process, leading to remote code execution (RCE) and full compromise of the affected system.
Mitigation
Upgrade to MathType 6.9d or later, which contains the fix [1]. No workarounds are available in the vulnerable version.
AI Insight generated on May 26, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
1- Range: <=6.9c
Patches
0No patches discovered yet.
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
2- www.dessci.com/en/dl/mitrex_refsource_MISC
- drive.google.com/openmitrex_refsource_MISC
News mentions
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