CVE-2018-6641

Name: CVE-2018-6641
Creator: NVD / NIST
Published: 2018-02-28T05:29:00.383+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 5.67%

Last modified Jun 17, 2026

CVE-2018-6641 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An Arbitrary Free (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. Crafted input can overwrite a structure, leading to a function call with an invalid parameter, and a subsequent free of important data such as a function pointer or list pointer. EPSS estimates a 5.67% chance of exploitation in the next 30 days.

Description

An Arbitrary Free (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. Crafted input can overwrite a structure, leading to a function call with an invalid parameter, and a subsequent free of important data such as a function pointer or list pointer. This is fixed in 6.9d.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

5.67%

92.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Wiris	Mathtype	6.9c

References

http://www.dessci.com/en/dl/Product, Vendor Advisory
https://drive.google.com/open?id=1qrHKzDA1daHh0mM2T8FRybL8we-mHRW9Exploit, Third Party Advisory
http://www.dessci.com/en/dl/Product, Vendor Advisory
https://drive.google.com/open?id=1qrHKzDA1daHh0mM2T8FRybL8we-mHRW9Exploit, Third Party Advisory

Timeline

Published: Feb 28, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-6641?

How severe is CVE-2018-6641?

CVE-2018-6641 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 5.67% probability of exploitation in the next 30 days.

How do I fix CVE-2018-6641?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-6641?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST