CVE-2017-18820

Name: CVE-2017-18820
Creator: NVD / NIST
Published: 2020-04-21T15:15:14.303+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.48%

Last modified Jun 17, 2026

CVE-2017-18820 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. NETGEAR ReadyNAS OS 6 devices running ReadyNAS OS versions prior to 6.8.0 are affected by stored XSS.. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

NETGEAR ReadyNAS OS 6 devices running ReadyNAS OS versions prior to 6.8.0 are affected by stored XSS.

Metrics

CVSS 3.1

4.8/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.48%

37.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Netgear	Readynas Os	>= 6.0, < 6.8.0

References

https://kb.netgear.com/000049045/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-ReadyNAS-devices-PSV-2017-0266Patch, Vendor Advisory
https://kb.netgear.com/000049045/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-ReadyNAS-devices-PSV-2017-0266Patch, Vendor Advisory

Timeline

Published: Apr 21, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-18820?

NETGEAR ReadyNAS OS 6 devices running ReadyNAS OS versions prior to 6.8.0 are affected by stored XSS.

How severe is CVE-2017-18820?

CVE-2017-18820 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.

How do I fix CVE-2017-18820?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-18820?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST