CVE-2018-3978
CVE-2018-3978 is a high-severity vulnerability in Atlantiswordprocessor Atlantis Word Processor with a CVSS 3.x base score of 8.8. 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: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (59th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Atlantiswordprocessor Atlantis Word Processor
- Published:
- Last modified:
Description
An exploitable out-of-bounds write vulnerability exists in the Word Document parser of the Atlantis Word Processor 3.0.2.3, 3.0.2.5. A specially crafted document can cause Atlantis to write a value outside the bounds of a heap allocation, resulting in a buffer overflow. An attacker must convince a victim to open a document in order to trigger this vulnerability.
Frequently asked questions
- What is CVE-2018-3978?
- An exploitable out-of-bounds write vulnerability exists in the Word Document parser of the Atlantis Word Processor 3.0.2.3, 3.0.2.5. A specially crafted document can cause Atlantis to write a value outside the bounds of a heap allocation, resulting in a buffer overflow. An attacker must convince a victim to open a document in order to trigger this vulnerability.
- How severe is CVE-2018-3978?
- CVE-2018-3978 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-3978 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-3978?
- CVE-2018-3978 primarily affects Atlantiswordprocessor Atlantis Word Processor. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2018-3978?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2018-3978 published?
- CVE-2018-3978 was published on 2018-10-01 and last updated on 2026-06-17.
References
Affected products (2)
- cpe:2.3:a:atlantiswordprocessor:atlantis_word_processor:3.0.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:atlantiswordprocessor:atlantis_word_processor:3.0.2.5:*:*:*:*:*:*:*
More vulnerabilities in Atlantiswordprocessor Atlantis Word Processor
- CVE-2018-3983 — High (CVSS 7.8): An exploitable uninitialized pointer vulnerability exists in the Word document parser of the the Atlantis Word…
- CVE-2018-4040 — High (CVSS 7.8): An exploitable uninitialized pointer vulnerability exists in the rich text format parser of Atlantis Word Processor,…
- CVE-2018-4039 — High (CVSS 7.8): An exploitable out-of-bounds write vulnerability exists in the PNG implementation of Atlantis Word Processor, version…
- CVE-2018-4038 — High (CVSS 7.8): An exploitable arbitrary write vulnerability exists in the open document format parser of the Atlantis Word Processor,…
- CVE-2018-4001 — High (CVSS 7.8): An exploitable uninitialized pointer vulnerability exists in the Office Open XML parser of Atlantis Word Processor,…
- CVE-2018-4000 — High (CVSS 7.8): An exploitable double-free vulnerability exists in the Office Open XML parser of Atlantis Word Processor, version…
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