CVE-2018-21155

mediumpriority · track · 24EPSS 0.008 · 56 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.79% (56th) EPSS

CVSS 4.3 · medium

Is it mine?

13 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

Certain NETGEAR devices are affected by stored XSS. This affects D7800 before 1.0.1.34, DM200 before 1.0.0.52, R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7500v2 before 1.0.3.26, R7800 before 1.0.2.42, R8900 before 1.0.4.2, R9000 before 1.0.3.16, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.54, WNDR4500v3 before 1.0.0.54, and WNR2000v5 before 1.0.0.64.

cvss

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

6.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.06.3mediumCVSS:3.0/AC:L/AV:A/A:L/C:L/I:L/PR:N/S:C/UI:Rsecondary · ENISA EU

v3.06.3mediumCVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Lsecondary · cve@mitre.org USexploitability 2.1 · impact 3.7

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimary

affected products (13)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
netgear d7800 firmware< 1.0.1.34nvdUScpe:2.3:o:netgear:d7800_firmware:*:*:*:*:*:*:*:*
netgear dm200 firmware< 1.0.0.52nvdUScpe:2.3:o:netgear:dm200_firmware:*:*:*:*:*:*:*:*
netgear r6100 firmware< 1.0.1.22nvdUScpe:2.3:o:netgear:r6100_firmware:*:*:*:*:*:*:*:*
netgear r7500 firmware< 1.0.0.122nvdUScpe:2.3:o:netgear:r7500_firmware:*:*:*:*:*:*:*:*
netgear r7500 firmware< 1.0.3.26nvdUScpe:2.3:o:netgear:r7500_firmware:*:*:*:*:*:*:*:*
netgear r7800 firmware< 1.0.2.42nvdUScpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*
netgear r8900 firmware< 1.0.4.2nvdUScpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:*
netgear r9000 firmware< 1.0.3.16nvdUScpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:*
netgear wndr4300 firmware< 1.0.0.54nvdUScpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:*
netgear wndr4300 firmware< 1.0.2.98nvdUScpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:*
netgear wndr4500 firmware< 1.0.0.54nvdUScpe:2.3:o:netgear:wndr4500_firmware:*:*:*:*:*:*:*:*
netgear wnr2000 firmware< 1.0.0.64nvdUScpe:2.3:o:netgear:wnr2000_firmware:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-04-27modified 2026-06-17

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+53007 more

references (4)

External citations — patches, advisories, analysis.

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