What is the CVSS score of CVE-2018-3933?

CVE-2018-3933 has a CVSS 3.0 base score of 7.8 (High). CVSS vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 2.1%.

Is there a public PoC exploit available for CVE-2018-3933?

Yes, a public proof-of-concept exploit is available for CVE-2018-3933. Prioritise patching immediately. EPSS: 2.1%.

Office Server Document Converter CVE-2018-3933

HIGH

Out-of-bounds Write (CWE-787)

2018-07-11 talos-cna@cisco.com

Memory Corruption Microsoft RCE Buffer Overflow Office Server Document Converter

7.8

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jul 11, 2018 - 16:29 nvd

HIGH 7.8

DescriptionNVD

An exploitable out-of-bounds write exists in the Microsoft Word document conversion functionality of the 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 vbputanld method.

AnalysisAI

An exploitable out-of-bounds write exists in the Microsoft Word document conversion functionality of the Antenna House Office Server Document Converter version V6.1 Pro MR2 for Linux64. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. An exploitable out-of-bounds write exists in the Microsoft Word document conversion functionality of the 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 vbputanld method. Affected products include: Antennahouse Office Server Document Converter.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).