TI-2018-04894 Aliases CVE-2018-6638 GHSA-w2gx-pfc5-rwp8

A stack-based buffer overflow (Remote Code Execution) issue was discovered in Design…

MEDIUM 49CWE-787Published 2018-02-28 · Updated 2024-08-05

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

A stack-based buffer overflow (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. This occurs in a function call in which the first argument is a corrupted offset value and the second argument is a stack buffer. This is fixed in 6.9d.

Why it matters now

EPSS 0.03919 90th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:wiris:mathtype:6.9c:::::::*	6.9c	Vulnerable	Wiris

cpe:2.3:a:wiris:mathtype:6.9c:*:*:*:*:*:*:* Versions 6.9c Vulnerable ·Wiris

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-6638
2026-10-03 Alias added: GHSA-w2gx-pfc5-rwp8

References

Exploit 1

https://drive.google.com/open?id=1V-AA1InXBPhgJviabilttkaP4DYay9f6

Advisory 1

http://www.dessci.com/en/dl/

TI-2018-04897 An Arbitrary Free (Remote Code Execution) issue was discovered in Design Science MathType… CVSS 3.1CRITICAL 9.8
TI-2018-04896 A Heap Overflow (Remote Code Execution) issue was discovered in Design Science MathType… CVSS 3.1CRITICAL 9.8
TI-2018-04895 An out-of-bounds write (Remote Code Execution) issue was discovered in Design Science… CVSS 3.1CRITICAL 9.8
TI-2022-13360 Wiris Mathtype v7.28.0 was discovered to contain a path traversal vulnerability in the… CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences