CVE-2018-6641 json
An Arbitrary Free (Remote Code Execution) issue was discovered in Design Science MathType 6.9c.
published 2018-02-28 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-18388
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.6%
- EPSS 5.6% chance of exploitation in 30 days, percentile 92%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
5.55% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- drive.google.com https://drive.google.com/open?id=1qrHKzDA1daHh0mM2T8FRybL8we-mHRW9 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-416 Use After Free
References
-
drive.google.com
/open?id=1qrHKzDA1daHh0mM2T8FRybL8we-mHRW9
exploit, third-party-advisory
-
dessci.com
/en/dl/
product, vendor-advisory
Sources
- CVE List CVE-2018-6641
- NVD CVE-2018-6641
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.