CVE-2018-6640
CVE-2018-6640 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-787.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 4% (89th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Wiris Mathtype
- Published:
- Last modified:
Description
A Heap Overflow (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. Crafted input can modify the next pointer of a linked list. This is fixed in 6.9d.
Frequently asked questions
- What is CVE-2018-6640?
- A Heap Overflow (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. Crafted input can modify the next pointer of a linked list. This is fixed in 6.9d.
- How severe is CVE-2018-6640?
- CVE-2018-6640 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-2018-6640 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-6640?
- CVE-2018-6640 affects Wiris Mathtype. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-6640?
- 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-2018-6640 published?
- CVE-2018-6640 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-2018-6641 — Critical (CVSS 9.8): An Arbitrary Free (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. Crafted input can…
- 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…
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