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Public proof of conceptFix available

CVE-2019-16328

A public proof of concept exists; no exploitation attested.

  • Published2019-10-03
  • Fixed in4.1.2 · 4.1.1
  • WeaknessCWE-1321

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2019-10-0320:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-16328?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-16328?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV · NVD
rpyc
BranchAffectedFixed in
4.1≥ 4.1.0, < 4.1.24.1.2
4.1≥ 4.1.0, < 4.1.14.1.1
Rpyc project rpyc
BranchAffectedFixed in
4.1≥ 4.1.0, ≤ 4.1.1no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • python-rpycSUSE:Package Hub 15 SP1all versions · fixed in 4.1.5-bp151.2.3.1and 1 other package
  • python-rpycopenSUSE:Tumbleweedall versions · fixed in 6.0.0-1.2
  • python-rpycopenSUSE:Tumbleweedall versions · fixed in 6.0.2-1.5
  • python-rpycopenSUSE:Leap 15.1all versions · fixed in 4.1.5-lp151.3.3.1and 1 other package

Vendor advisories

  • CVE-2019-16328 Red Hat Product Security

    python-rpyc: missing protocol security check leads remote procedure call that executes code for a RPyC service

Full record on NVD

Fix

  1. Update rpyc to 4.1.2 · 4.1.1

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
1 moduleauxiliary/scanner/http/rpyc_rcerank: normalModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
2019-10-03
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-pj4g-4488-wmxm

Frequently asked questions

What is CVE-2019-16328?

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.

Is CVE-2019-16328 actively exploited?

Active exploitation of CVE-2019-16328 has not been confirmed. Its EPSS score was 13.0% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-16328?

CVE-2019-16328 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

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Sources for this record