How severe is CVE-2018-3983?

CVE-2018-3983 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-3983 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3983?

CVE-2018-3983 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-2018-3983?

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-2018-3983 published?

CVE-2018-3983 was published on 2019-10-31 and last updated on 2026-06-17.

CVE-2018-3983

CVE-2018-3983 is a high-severity vulnerability in Atlantiswordprocessor Atlantis Word Processor with a CVSS 3.x base score of 7.8. 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-824.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-824
Affected product: Atlantiswordprocessor Atlantis Word Processor
Published: 2019-10-31
Last modified: 2026-06-17

Description

An exploitable uninitialized pointer vulnerability exists in the Word document parser of the the Atlantis Word Processor. A specially crafted document can cause an array fetch to return an uninitialized pointer and then performs some arithmetic before writing a value to the result. Usage of this uninitialized pointer can allow an attacker to corrupt heap memory resulting in code execution under the context of the application. An attacker must convince a victim to open a document in order to trigger this vulnerability.

Frequently asked questions

What is CVE-2018-3983?: An exploitable uninitialized pointer vulnerability exists in the Word document parser of the the Atlantis Word Processor. A specially crafted document can cause an array fetch to return an uninitialized pointer and then performs some arithmetic before writing a value to the result. Usage of this uninitialized pointer can allow an attacker to corrupt heap memory resulting in code execution under the context of the application. An attacker must convince a victim to open a document in order to trigger this vulnerability.
How severe is CVE-2018-3983?: CVE-2018-3983 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-3983 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3983?: CVE-2018-3983 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-2018-3983?: 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-2018-3983 published?: CVE-2018-3983 was published on 2019-10-31 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0651

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-2018-3978 — High (CVSS 8.8): An exploitable out-of-bounds write vulnerability exists in the Word Document parser of the Atlantis Word Processor…
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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