CVE-2019-3464
CRITICALEPSS 91th pctlDescription
Insufficient sanitization of environment variables passed to rsync can bypass the restrictions imposed by rssh, a restricted shell that should restrict users to perform only rsync operations, resulting in the execution of arbitrary shell commands.
How to fix
This Ubuntu release reached end-of-life on 2019-04-02.
This Ubuntu release reached end-of-life on 2021-04-02.
This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
High risk: more likely to be exploited than 91% of all known CVEs.
References
Related Vulnerabilities
Other CWE-665 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2022-0847 | High | 7.8 | 90% | KEV | Fix |
| CVE-2022-22719 | High | 7.5 | 70% | - | Fix |
| CVE-2020-28019 | High | 7.5 | 62% | - | Fix |
| CVE-2022-46164 | Critical | 9.4 | 49% | - | Fix |
| CVE-2022-37128 | Critical | 9.8 | 21% | - | - |
| CVE-2019-14271 | Critical | 9.8 | 19% | - | Fix |
Common questions
How do I fix CVE-2019-3464?
Upgrade rssh on ubuntu 14.04 to 2.3.4-4+deb8u2ubuntu0.14.04.2 or later.
Is CVE-2019-3464 being actively exploited?
Not that we know of. CVE-2019-3464 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 4.7% is the estimated probability that it will be exploited in the next 30 days. That is higher than 91% of all scored CVEs.
How severe is CVE-2019-3464?
CVE-2019-3464 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2019-3464 affect?
Published advisories record a fix for rssh (Ubuntu). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2019-3464
Markdown
[](https://tridentstack.com/cve/CVE-2019-3464)HTML
<a href="https://tridentstack.com/cve/CVE-2019-3464"><img src="https://tridentstack.com/cve/badge/CVE-2019-3464.svg" alt="CVE-2019-3464"></a>Check your Linux endpoints for this class of vulnerability
TridentStack Control continuously scans Linux endpoints for known vulnerabilities and deploys the fixes from the same console. 200 endpoints free forever, no credit card.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-17.