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CVE-2019-9729

HighPublished

In Shanda MapleStory Online V160, the SdoKeyCrypt.sys driver allows privilege escalation to NT AUTHORITY\SYSTEM because of not validating the IOCtl...

Published: Mar 12, 2019
Updated: Aug 4, 2024
Assigning CNA: mitre
Evidence observed: Aug 4, 2026

Primary CVSS

7.8/ 10High

nvd · CVSS 3.0

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

EPSS probability estimate

1.0%

Low · next 30 days

Percentile: 62.1%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

SdoKeyCrypt-sys-local-privilege-elevationExploit
CVE-2019-9729. Transferred from https://github.com/DoubleLabyrinth/SdoKeyCrypt-sys-local-privilege-elevation
HyperSineExploit
CVE-2019-9729. Transferred from https://github.com/DoubleLabyrinth/SdoKeyCrypt-sys-local-privilege-elevation

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