CVE-2021-45638

highpriority · track · 40EPSS 0.016 · 75 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.58% (75th) EPSS

CVSS 7.5 · high

Is it mine?

29 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D6220 before 1.0.0.68, D6400 before 1.0.0.102, D7000v2 before 1.0.0.74, D8500 before 1.0.3.60, DC112A before 1.0.0.56, R6300v2 before 1.0.4.50, R6400 before 1.0.1.68, R7000 before 1.0.11.116, R7100LG before 1.0.0.70, RBS40V before 2.6.2.8, RBW30 before 2.6.2.2, RS400 before 1.5.1.80, R7000P before 1.3.2.132, and R6900P before 1.3.2.132.

cvss

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

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.6criticalAV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.6criticalCVSS:3.1/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:C/UI:Nsecondary · ENISA EU

v3.19.6criticalCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · cve@mitre.org USexploitability 2.8 · impact 6

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/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-787USprimaryCWE-787US

affected products (29)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
NETGEAR D6220≤ 1.0.0.68fstec_bduRU
NETGEAR D7000≤ 1.0.11.116fstec_bduRU
NETGEAR D7000v2≤ 1.0.0.74fstec_bduRU
NETGEAR D8500≤ 1.0.3.60fstec_bduRU
NETGEAR DC112A≤ 1.0.0.56fstec_bduRU
NETGEAR EX6400≤ 1.0.0.102fstec_bduRU
NETGEAR EX6400≤ 1.0.1.68fstec_bduRU
NETGEAR R6300v2≤ 1.0.4.50fstec_bduRU
NETGEAR R6900P≤ 1.3.2.132fstec_bduRU
NETGEAR R7000P≤ 1.3.2.132fstec_bduRU
NETGEAR R7100LG≤ 1.0.0.70fstec_bduRU
NETGEAR RBS40V≤ 2.6.2.8fstec_bduRU
NETGEAR RBW30≤ 2.6.2.2fstec_bduRU
NETGEAR RS400≤ 1.5.1.80fstec_bduRU
netgear d6220 firmware< 1.0.0.68nvdUScpe:2.3:o:netgear:d6220_firmware:*:*:*:*:*:*:*:*
netgear d6400 firmware< 1.0.0.102nvdUScpe:2.3:o:netgear:d6400_firmware:*:*:*:*:*:*:*:*
netgear d7000v2 firmware< 1.0.0.74nvdUScpe:2.3:o:netgear:d7000v2_firmware:*:*:*:*:*:*:*:*
netgear d8500 firmware< 1.0.3.60nvdUScpe:2.3:o:netgear:d8500_firmware:*:*:*:*:*:*:*:*
netgear dc112a firmware< 1.0.0.56nvdUScpe:2.3:o:netgear:dc112a_firmware:*:*:*:*:*:*:*:*

showing 20 of 29

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2021-12-26modified 2026-06-17

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+16123 more

references (4)

External citations — patches, advisories, analysis.

scry

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