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CVE-2019-20746· NVD / CVE Program· CNA mitre

Certain NETGEAR devices are affected by reflected XSS.

Noroxi assessment

Priority: Monitor (action score 19/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.62% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. Administrator privileges are required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Certain NETGEAR devices are affected by reflected XSS. This affects D3600 before 1.0.0.75, D6000 before 1.0.0.75, D7800 before 1.0.1.44, DM200 before 1.0.0.58, R7800 before 1.0.2.58, R8900 before 1.0.4.12, R9000 before 1.0.4.8, RBK20 before 2.3.0.28, RBR20 before 2.3.0.28, RBS20 before 2.3.0.28, RBK40 before 2.3.0.28, RBS40 before 2.3.0.28, RBK50 before 2.3.0.32, RBR50 before 2.3.0.32, RBS50 before 2.3.0.32, WN3000RPv2 before 1.0.0.68, WN3000RPv3 before 1.0.2.70, WN3100RPv2 before 1.0.0.60, WNDR4300v2 before 1.0.0.58, WNDR4500v3 before 1.0.0.58, and WNR2000v5 before 1.0.0.68.

MediumCVSS 4.8 · v3.1—No exploit No fix recorded
Published
Apr 16, 2020
Updated
Jun 16, 2026
EPSS
0.6% · 48th percentile

Report tools

JSON

Action score

19

Monitor

Low priority for now.

CVSS
19 / 40 · 4.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

CNA vs NVD score

NVD
4.8
CNA · mitre
4.3
0.5 point gap

CVSS:3.0/AC:L/AV:A/A:N/C:L/I:L/PR:H/S:C/UI:R

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2019-20746

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
netgeard3600 firmware
netgeard3600
netgeard6000 firmware
netgeard6000
netgeard7800 firmware
netgeard7800
netgeardm200 firmware
netgeardm200
netgearr7800 firmware
netgearr7800
netgearr8900 firmware
netgearr8900

and 28 more

Limit the impact of XSS

This is a cross-site scripting (XSS) vulnerability. A well-configured Content-Security-Policy doesn't fix it, but greatly reduces its impact. Check your site's CSP and other security headers for free.

Check security headers

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • netgear d3600 firmwarebefore 1.0.0.75
  • netgear d6000 firmwarebefore 1.0.0.75
  • netgear d7800 firmwarebefore 1.0.1.44
  • netgear dm200 firmwarebefore 1.0.0.58
  • netgear r7800 firmwarebefore 1.0.2.58
  • netgear r8900 firmwarebefore 1.0.4.12
  • netgear r9000 firmwarebefore 1.0.4.8
  • netgear rbk20 firmwarebefore 2.3.0.28
  • netgear rbk40 firmwarebefore 2.3.0.28
  • netgear rbk50 firmwarebefore 2.3.0.32
  • netgear rbr20 firmwarebefore 2.3.0.28
  • netgear rbr50 firmwarebefore 2.3.0.32
  • netgear rbs20 firmwarebefore 2.3.0.28
  • netgear rbs40 firmwarebefore 2.3.0.28
  • netgear rbs50 firmwarebefore 2.3.0.32
  • netgear wn3000rp firmwarebefore 1.0.0.68
  • netgear wn3000rp firmwarebefore 1.0.2.70
  • netgear wn3100rp firmwarebefore 1.0.0.60
  • netgear wndr4300 firmwarebefore 1.0.0.58
  • netgear wndr4500 firmwarebefore 1.0.0.58

Same product

netgear: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-35799Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker.
    39Monitor
  • CVE-2018-21137Certain NETGEAR devices are affected by a hardcoded password.
    39Monitor
  • CVE-2019-20730Certain NETGEAR devices are affected by SQL injection.
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2019-20726Apr 16, 2020 · Certain NETGEAR devices are affected by command injection by an authenticated user.
    27Monitor
  • ← EarlierCVE-2019-20735Apr 16, 2020 · Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user.
    27Monitor
  • Later →CVE-2019-20752Apr 16, 2020 · Certain NETGEAR devices are affected by stored XSS.
    19Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • Administrator privileges are required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
Required
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

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

CVSS vector

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

nvd-primary

Root cause

User content is inserted into the page as HTML. The browser interprets the content as code rather than data.

The bug in code

The whole CWE-79 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
commentEl.innerHTML = comment.body;

Fixed

ts
commentEl.textContent = comment.body;

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records