# CVE-2018-1000117: Python 3.5 and 2 others: Python Software Foundation CPython version From 3.2 until 3.6.4 on Windows contains a Buffer Overflow…

CVE-2018-1000117 is fixed in 2 products on 1 platform, first by Python 3.6 3.6.5, released March 28, 2018. 1 other affected product has no fix yet. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-1000117
- Priority: Routine
- CVSS: 6.7
- EPSS: 0.0104
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 7, 2018
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2018-1000117

## Description

Python Software Foundation CPython version From 3.2 until 3.6.4 on Windows contains a Buffer Overflow vulnerability in os.symlink() function on Windows that can result in Arbitrary code execution, likely escalation of privilege. This attack appears to be exploitable via a python script that creates a symlink with an attacker controlled name or location. This vulnerability appears to have been fixed in 3.7.0 and 3.6.5.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Python 3.6 | 3.6.5 | [Python 3.6 3.6.5](https://patchblox.com/security/data/fix/windows-app/python.python.3.6-3.6.5.md) | Mar 28, 2018 |
| Windows apps | Python 3.7 | 3.7.1 | [Python 3.7 3.7.1](https://patchblox.com/security/data/fix/windows-app/python.python.3.7-3.7.1.md) | Oct 20, 2018 |

## No fix yet

| Platform | Product | Status |
|---|---|---|
| Windows apps | Python 3.5 | no-fix |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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