CVE-2018-21183

mediumpriority · track · 27EPSS 0.007 · 53 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.71% (53rd) EPSS

CVSS 5.2 · medium

Is it mine?

5 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects R7800 before 1.0.2.40, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.94.

cvss

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

6.8

010

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

v2.05.2mediumAV:A/AC:L/Au:S/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 5.1 · impact 6.4

v3.16.8mediumCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 0.9 · impact 5.9

v3.06.8mediumCVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:Nsecondary · ENISA EU

v3.06.8mediumCVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · cve@mitre.org USexploitability 0.9 · impact 5.9

v3.16.2mediumCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimary

affected products (5)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
netgear r7800 firmware< 1.0.2.40nvdUScpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*
netgear r9000 firmware< 1.0.2.52nvdUScpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:*
netgear wndr3700 firmware< 1.0.2.92nvdUScpe:2.3:o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:*
netgear wndr4300 firmware< 1.0.2.94nvdUScpe:2.3:o:netgear:wndr4300_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 2020-04-28modified 2026-06-17

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+16124 more

references (4)

External citations — patches, advisories, analysis.

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