What is the CVSS score of CVE-2019-9729?

CVE-2019-9729 has a CVSS 3.0 base score of 7.8 (High). CVSS vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.0%.

Is there a public PoC exploit available for CVE-2019-9729?

Yes, a public proof-of-concept exploit is available for CVE-2019-9729. Prioritise patching immediately. EPSS: 1.0%.

Maplestory Online CVE-2019-9729

HIGH

Improper Validation of Array Index (CWE-129)

2019-03-12 cve@mitre.org

Privilege Escalation Maplestory Online

7.8

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Mar 12, 2019 - 22:29 nvd

HIGH 7.8

DescriptionNVD

In Shanda MapleStory Online V160, the SdoKeyCrypt.sys driver allows privilege escalation to NT AUTHORITY\SYSTEM because of not validating the IOCtl 0x8000c01c input value, leading to an integer signedness error and a heap-based buffer underflow.

AnalysisAI

In Shanda MapleStory Online V160, the SdoKeyCrypt.sys driver allows privilege escalation to NT AUTHORITY\SYSTEM because of not validating the IOCtl 0x8000c01c input value, leading to an integer. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-129. In Shanda MapleStory Online V160, the SdoKeyCrypt.sys driver allows privilege escalation to NT AUTHORITY\SYSTEM because of not validating the IOCtl 0x8000c01c input value, leading to an integer signedness error and a heap-based buffer underflow. Affected products include: Shanda Maplestory Online.

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.