Security readout for executives and security teams
Plain-English summary
CVE-2018-4039 is a memory corruption flaw in Atlantis Word Processor’s PNG handling. A victim would need to open a specially crafted document. Successful exploitation could run code with the application’s privileges, creating risk of endpoint compromise where affected versions remain in use.
Executive priority
Treat as a high-priority endpoint exposure if the affected word processor is present. The flaw can lead to code execution, but business urgency depends on whether vulnerable versions are installed and whether users handle untrusted documents.
Technical view
The source describes an out-of-bounds write in the PNG implementation of Atlantis Word Processor versions 3.2.7.1 and 3.2.7.2. CVSS 3.0 is 8.8 with network attack vector, low complexity, no privileges required, and required user interaction. Impact is high for confidentiality, integrity, and availability.
Likely exposure
Exposure is most likely on user workstations where Atlantis Word Processor 3.2.7.1 or 3.2.7.2 can open externally supplied documents. Risk increases for users who receive attachments or downloaded documents from untrusted sources.
Exploitation context
The bundle does not indicate CISA KEV listing or active exploitation. Exploitation requires persuading a user to open a crafted document. The cited description says memory corruption can result in code execution in the application context.
Researcher notes
Sources identify the vulnerable component and impact but the provided bundle does not include patch details, CWE classification, proof of active exploitation, or detailed exploit conditions beyond crafted-document user interaction. Avoid assuming broader product exposure without inventory evidence.
Mitigation direction
- Inventory Atlantis Word Processor installations and identify versions 3.2.7.1 and 3.2.7.2.
- Check Atlantis or Talos guidance for fixed versions or vendor-recommended mitigations.
- Limit opening of untrusted documents on affected systems until remediated.
- Use endpoint controls to inspect or quarantine unexpected document attachments.
- Run affected software with least-privilege user accounts where possible.
Validation and detection
- Confirm whether any endpoints run Atlantis Word Processor 3.2.7.1 or 3.2.7.2.
- Review software inventory, endpoint telemetry, and package management records for affected versions.
- Check mail and web security logs for delivery of unusual document attachments to affected users.
- Verify remediation by confirming affected versions are removed or updated per vendor guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-4039 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://talosintelligence.com/vulnerability_reports/TALOS-2018-0712CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.