Security readout for executives and security teams
Plain-English summary
A specially crafted Microsoft Word DOC file can compromise Antenna House Office Server Document Converter V6.1 Pro MR2 for Linux64 build 2018-0312. If the converter processes the file, the flaw can allow remote code execution. This matters where document conversion handles files from customers, partners, email, portals, or other untrusted sources.
Executive priority
Treat this as a high-priority exposure review if Antenna House conversion is used in business document workflows. Prioritize public or partner-facing upload paths first. If the affected build is absent, urgency drops substantially.
Technical view
CVE-2018-3936 is an out-of-bounds write in Antenna House Office Server Document Converter V6.1 Pro MR2 for Linux64 (6,1,2018,0312). The CVSS 3.0 score is 8.8, with network attack vector, low complexity, no privileges required, user interaction required, unchanged scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to environments running the named Linux64 converter version/build. Risk is highest when the service converts untrusted DOC files or is connected to workflows that automatically process uploaded or received Office documents.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation evidence. Public details state that a crafted Word DOC can trigger the issue and result in remote code execution, but the bundle does not provide confirmed exploitation in the wild.
Researcher notes
The evidence supports RCE via crafted DOC processing in one specific product build. The source bundle does not name a patch level, workaround, affected code path, or active exploitation. Avoid broad product assumptions beyond the listed Antenna House version.
Mitigation direction
- Inventory Antenna House Office Server Document Converter deployments and identify the exact Linux64 version and build.
- Check Antenna House and Talos guidance for fixed versions or vendor-supported mitigations.
- Restrict or suspend untrusted DOC conversion until exposure is understood.
- Run document conversion services with strong isolation and least privilege.
- Limit network access to conversion services and related upload workflows.
Validation and detection
- Confirm whether version V6.1 Pro MR2 for Linux64 build 2018-0312 is present.
- Map every workflow that submits DOC files to the converter.
- Review logs for converter crashes, unexpected restarts, or suspicious DOC processing failures.
- Verify whether conversion services are isolated from sensitive systems and credentials.
- Do not validate using weaponized documents in production.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
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-2018-3936 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0603CVE 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.