CVE-2017-18814

Script execution via undisclosed stored input

Published Apr 21, 2020 · Updated Aug 5, 2024

Stored XSS in NETGEAR ReadyNAS OS 6 before 6.8.0 allows attackers to execute script in another user's browser through stored input. NETGEAR has not published the affected interface, stored field, or missing output-encoding operation that causes the saved input to execute. Published assessments disagree on local versus network reachability; exploitation requires high privileges and user interaction, and execution is confined to the affected browser context.

CVSS severity4.8
Medium
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in NETGEAR ReadyNAS OS 6 before 6.8.0 allows attackers to execute script in another user's browser through stored input. NETGEAR has not published the affected interface, stored field, or missing output-encoding operation that causes the saved input to execute. Published assessments disagree on local versus network reachability; exploitation requires high privileges and user interaction, and execution is confined to the affected browser context.

The record

CVE
CVE-2017-18814
Published
Apr 21, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79
Attack vector
Unavailable
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 21, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.2NETGEARCVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
4.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
3.5NIST National Vulnerability DatabaseAV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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