CVE-2020-14387

mediumpriority · track · 30EPSS 0.011 · 66 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.11% (66th) EPSS

CVSS 5.8 · medium

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with host mismatch vulnerability. A remote, unauthenticated attacker could exploit the flaw by performing a man-in-the-middle attack using a valid certificate for another hostname which could compromise confidentiality and integrity of data transmitted using rsync-ssl. The highest threat from this vulnerability is to data confidentiality and integrity. This flaw affects rsync versions before 3.2.4.

cvss

Technical severity, 0–10. One row per scoring source.

7.4

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.8–7.4

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 4.9

v3.17.4highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 2.2 · impact 5.2

v3.16.8mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-297US

affected products (4)

Products and version ranges known to be affected.

Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
n/a rsync≤ rsync 3.2.4enisa_euvdEU
samba rsync= 3.2.0nvdUScpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*
samba rsync3.2.1 → 3.2.4nvdUScpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-1049Rsync: Schwachstelle ermöglicht Umgehen von SicherheitsvorkehrungenDeutsch2021-06-09csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Rsync ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2021-05-27modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

https://access.redhat.com/security/cve/cve-2020-14387 cnnvd
https://bugzilla.redhat.com/show_bug.cgi?id=1875549 cnnvd
https://bugzilla.redhat.com/show_bug.cgi?id=1875549 enisa_euvd
https://bugzilla.redhat.com/show_bug.cgi?id=1875549Issue TrackingPatchThird Party Advisorynvd

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan