How severe is CVE-2018-4040?

CVE-2018-4040 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-2018-4040 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-2018-4040?

CVE-2018-4040 affects Atlantiswordprocessor Atlantis Word Processor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-4040?

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-2018-4040 published?

CVE-2018-4040 was published on 2018-12-01 and last updated on 2026-06-17.

CVE-2018-4040

CVE-2018-4040 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% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-824
Affected product: Atlantiswordprocessor Atlantis Word Processor
Published: 2018-12-01
Last modified: 2026-06-17

Description

An exploitable uninitialized pointer vulnerability exists in the rich text format parser of Atlantis Word Processor, version 3.2.7.2. A specially crafted document can cause certain RTF tokens to dereference a pointer that has been uninitialized and then write to it. An attacker must convince a victim to open a specially crafted document in order to trigger this vulnerability.

Frequently asked questions

What is CVE-2018-4040?: An exploitable uninitialized pointer vulnerability exists in the rich text format parser of Atlantis Word Processor, version 3.2.7.2. A specially crafted document can cause certain RTF tokens to dereference a pointer that has been uninitialized and then write to it. An attacker must convince a victim to open a specially crafted document in order to trigger this vulnerability.
How severe is CVE-2018-4040?: CVE-2018-4040 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-2018-4040 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-2018-4040?: CVE-2018-4040 affects Atlantiswordprocessor Atlantis Word Processor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-4040?: 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-2018-4040 published?: CVE-2018-4040 was published on 2018-12-01 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0713

Affected products (1)

cpe:2.3:a:atlantiswordprocessor:atlantis_word_processor:3.2.7.2:*:*:*:*:*:*:*

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