CVE-2018-3998
CVSS v3
7.8
HIGH
EPSS Score
1.0 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An exploitable heap-based buffer overflow vulnerability exists in the Windows enhanced metafile parser of Atlantis Word Processor, version 3.2.5.0. A specially crafted image embedded within a document can cause an undersized allocation, resulting in an overflow when the application tries to copy data into it. An attacker must convince a victim to open a document in order to trigger this vulnerability.
Technical details
- Published
- 2018-10-01
Frequently asked questions
What is CVE-2018-3998?
An exploitable heap-based buffer overflow vulnerability exists in the Windows enhanced metafile parser of Atlantis Word Processor, version 3.2.5.0. A specially crafted image embedded within a document can cause an undersized allocation, resulting in an overflow when the application tries to copy data into it. An attacker must convince a victim to open a document in order to trigger this vulnerability.
Is CVE-2018-3998 actively exploited?
Active exploitation of CVE-2018-3998 has not been confirmed. Its EPSS score was 1.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-3998?
CVE-2018-3998 has a CVSS v3 base score of 7.8 (HIGH severity).
Is CVE-2018-3998 affecting your environment?
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