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CVE Record

CVE-2018-3930: In Antenna House Office Server Document Converter version V6.1 Pro MR2 for Linux64 (6,1,2018,0312), a craft...

In Antenna House Office Server Document Converter version V6.1 Pro MR2 for Linux64 (6,1,2018,0312), a crafted Microsoft Word (DOC) document can lead to an out-of-bounds write, resulting in remote code execution. This vulnerability occurs in the `vbgetfp` method.

HighCVSS 8.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A crafted Microsoft Word DOC file can make the affected Antenna House document converter write outside memory bounds and potentially run attacker-controlled code. Business risk is highest where this converter processes files from customers, partners, email, or public upload workflows.

Executive priority

Treat as high priority if the product is in use. The practical decision is inventory first, then reduce untrusted DOC processing and follow vendor guidance. If the affected converter is not deployed, direct exposure is unlikely.

Technical view

CVE-2018-3930 affects Antenna House Office Server Document Converter V6.1 Pro MR2 for Linux64 build 6,1,2018,0312. The reported flaw is an out-of-bounds write in the `vbgetfp` method triggered by a crafted DOC document, with remote code execution impact and CVSS 3.0 score 8.8.

Likely exposure

Exposure appears limited to organizations running the specified Antenna House converter version, especially where DOC files from untrusted or semi-trusted sources are automatically converted.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The attack requires a crafted DOC to be processed, reflected by CVSS user interaction required.

Researcher notes

Public details identify the vulnerable method and file type but do not provide a CWE, patch status, or active exploitation evidence in the supplied bundle. Avoid assuming broader Antenna House products or versions are affected.

Mitigation direction

  • Inventory Antenna House Office Server Document Converter deployments and versions.
  • Check Antenna House and Talos guidance for fixed versions or supported mitigations.
  • Restrict or suspend untrusted DOC conversion until vendor guidance is confirmed.
  • Isolate converter workloads from sensitive systems and credentials.
  • Monitor conversion failures, crashes, and unusual child-process behavior.

Validation and detection

  • Confirm whether build 6,1,2018,0312 is present on Linux64 systems.
  • Map every workflow that sends DOC files to the converter.
  • Verify public upload, email, and partner ingestion paths are covered.
  • Check whether compensating isolation limits code execution impact.
  • Review vendor advisories before declaring remediation complete.
Prepared
Confidence
high
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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.

description · low confidence lookup

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 lookup
cve · low confidence lookup

CVE-2018-3930 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
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

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
8.8CVSS 3.0HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

8.8High
CVSS 3.0 vector shape for CVE-2018-3930Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Antenna HouseAntenna HouseOffice Server Document Converter version V6.1 Pro MR2 for Linux64 (6,1,2018,0312)Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.