CVE-2019-16784
7.0 · HIGHOverview
CVE-2019-16784 is a high-severity vulnerability affecting pyinstaller pyinstaller. It was published on January 14, 2020 and has a CVSS 3.1 base score of 7.0 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
In PyInstaller before version 3.6, only on Windows, a local privilege escalation vulnerability is present in this particular case: If a software using PyInstaller in "onefile" mode is launched by a privileged user (at least more than the current one) which have his "TempPath" resolving to a world writable directory. This is the case for example if the software is launched as a service or as a scheduled task using a system account (TempPath will be C:\Windows\Temp). In order to be exploitable the software has to be (re)started after the attacker launch the exploit program, so for a service launched at startup, a service restart is needed (e.g. after a crash or an upgrade).
Remediation
Check the references section for vendor advisories and patches from pyinstaller. Update pyinstaller to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| pyinstaller | pyinstaller | >= 0, < 3.6 | Affected |
Frequently Asked Questions
What is CVE-2019-16784?
CVE-2019-16784 is a high-severity vulnerability affecting pyinstaller pyinstaller. It was published on January 14, 2020 and has a CVSS 3.1 base score of 7.0 (HIGH).
How severe is CVE-2019-16784?
This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2019-16784?
Check the references section for vendor advisories and patches from pyinstaller. Update pyinstaller to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-16784?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-16784 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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