CVE-2018-6639
An out-of-bounds write (Remote Code Execution) issue was discovered in Design Science MathType 6...
CVE-2018-6639 is a critical vulnerability (CVSS 9.8) in Wiris Mathtype, published February 28, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.61%, the 89th percentile. No source names a fixed version.
An out-of-bounds write (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. A size used by memmove is read from the input file. This is fixed in 6.9d.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An out-of-bounds write (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. A size used by memmove is read from the input file. This is fixed in 6.9d.
- Record
CVE-2018-6639- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
An out-of-bounds write (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. A size used by memmove is read from the input file. This is fixed in 6.9d.
- Record
CVE-2018-6639- Updated
- 2026-11-02
EUVDEUVD-2018-18386 No score
An out-of-bounds write (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. A size used by memmove is read from the input file. This is fixed in 6.9d.
- Record
EUVD-2018-18386- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9wgj-6vhq-v8f5
An out-of-bounds write (Remote Code Execution) issue was discovered in Design Science MathType 6...
An out-of-bounds write (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. A size used by memmove is read from the input file. This is fixed in 6.9d.
- Record
GHSA-9wgj-6vhq-v8f5- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
Affected products
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD |