# CVE-2019-16328: Dynamic modification of RPyC service due to missing security check

Source: https://junglewise.ai/threats/cve-2019-16328-duplicate-advisory-possible-remote-code-execution-via-a-remote  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2019-10-03  
License: CC BY 4.0 with a link back

CVE-2019-16328 · Severity: low · CVSS 3.1 · Published 2019-10-03

In RPyC 4.1.x through 4.1.1, a remote attacker can dynamically modify object attributes to construct a remote procedure call that executes code for an RPyC service with default configuration settings.

Technologies: [rpyc (PyPI)](https://junglewise.ai/threats/technologies/rpyc). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2019-16328 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2019-16328 being exploited in the wild.

**How severe is CVE-2019-16328?** Low severity, with a CVSS score of 3.1, published 3 October 2019.

**Which products and versions are affected?** rpyc (PyPI) ECOSYSTEM:introduced=4.1.0,fixed=4.1.1, ECOSYSTEM:introduced=4.1.0,fixed=4.1.2.

**Is there a fix for CVE-2019-16328?** Yes. rpyc (PyPI): upgrade to 4.1.1, 4.1.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2019-16328?** Check whether you run rpyc (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- rpyc (PyPI): upgrade to 4.1.1, 4.1.2 or later

  ```sh
  pip install "rpyc>=4.1.2"
  ```


## Affected products

- rpyc (PyPI) ECOSYSTEM:introduced=4.1.0,fixed=4.1.1, ECOSYSTEM:introduced=4.1.0,fixed=4.1.2

## Identifiers

- CVE-2019-16328
- GHSA-9ggp-4jpr-7ppj
- GHSA-pj4g-4488-wmxm
- PYSEC-2019-118

## Related threats

- [RPyC's missing security check results in code execution when using numpy.array on the server-side.](https://junglewise.ai/threats/cve-2024-27758-rpyc-s-missing-security-check-results-in-code-execution-when)
- [PYSEC-2019-48 - In RPyC 4.1.x through 4.1.1, a remote attacker can dynamically modify object attributes to construct a…](https://junglewise.ai/threats/pysec-2019-48-in-rpyc-4-1-x-through-4-1-1-a-remote-attacker-can-e4c92328)