CVE-2018-6641
CVE-2018-6641 is a critical-severity vulnerability in Wiris Mathtype with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 6% (92nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-416
- Affected product: Wiris Mathtype
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2018-6641?
- 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.
- How severe is CVE-2018-6641?
- CVE-2018-6641 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-6641 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-6641?
- CVE-2018-6641 affects Wiris Mathtype. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-6641?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2018-6641 published?
- CVE-2018-6641 was published on 2018-02-28 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:wiris:mathtype:6.9c:*:*:*:*:*:*:*
More vulnerabilities in Wiris Mathtype
- CVE-2018-6640 — Critical (CVSS 9.8): A Heap Overflow (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. Crafted input can modify…
- CVE-2018-6639 — Critical (CVSS 9.8): An out-of-bounds write (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. A size used by…
- CVE-2018-6638 — Critical (CVSS 9.8): A stack-based buffer overflow (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. This occurs…
- CVE-2022-31372 — High (CVSS 7.5): Wiris Mathtype v7.28.0 was discovered to contain a path traversal vulnerability in the resourceFile parameter. This…
All CVEs affecting Wiris Mathtype →
Other CWE-416 (Use After Free) vulnerabilities
- CVE-2026-13782 — Critical (CVSS 10.0): Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the…
- CVE-2026-4725 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149…
- CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
- CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
- CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
- CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…