What is the CVSS score of CVE-2019-5030?

CVE-2019-5030 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 2.9%.

Is there a public PoC exploit available for CVE-2019-5030?

Yes, a public proof-of-concept exploit is available for CVE-2019-5030. Prioritise patching immediately. EPSS: 2.9%.

Rainbow Pdf Office Server Document Converter CVE-2019-5030

HIGH

Heap-based Buffer Overflow (CWE-122)

2019-10-31 talos-cna@cisco.com

Buffer Overflow Heap Overflow Microsoft RCE Rainbow Pdf Office Server Document Converter

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Oct 31, 2019 - 21:15 nvd

HIGH 8.8

DescriptionNVD

A buffer overflow vulnerability exists in the PowerPoint document conversion function of Rainbow PDF Office Server Document Converter V7.0 Pro MR1 (7,0,2019,0220). While parsing a document text info container, the TxMasterStyleAtom::parse function is incorrectly checking the bounds corresponding to the number of style levels, causing a vtable pointer to be overwritten, which leads to code execution.

AnalysisAI

A buffer overflow vulnerability exists in the PowerPoint document conversion function of Rainbow PDF Office Server Document Converter V7.0 Pro MR1 (7,0,2019,0220). Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-122. A buffer overflow vulnerability exists in the PowerPoint document conversion function of Rainbow PDF Office Server Document Converter V7.0 Pro MR1 (7,0,2019,0220). While parsing a document text info container, the TxMasterStyleAtom::parse function is incorrectly checking the bounds corresponding to the number of style levels, causing a vtable pointer to be overwritten, which leads to code execution. Affected products include: Antennahouse Rainbow Pdf Office Server Document Converter.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.