CVE-2021-45608

highpriority · track · 40EPSS 0.027 · 86 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

2.70% (86th) EPSS

CVSS 7.5 · high

Is it mine?

13 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

Certain D-Link, Edimax, NETGEAR, TP-Link, Tenda, and Western Digital devices are affected by an integer overflow by an unauthenticated attacker. Remote code execution from the WAN interface (TCP port 20005) cannot be ruled out; however, exploitability was judged to be of "rather significant complexity" but not "impossible." The overflow is in SoftwareBus_dispatchNormalEPMsgOut in the KCodes NetUSB kernel module. Affected NETGEAR devices are D7800 before 1.0.1.68, R6400v2 before 1.0.4.122, and R6700v3 before 1.0.4.122.

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 · medium–critical · 6.5–9.8

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

v3.16.5mediumAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AC:H/AV:N/A:N/C:H/I:L/PR:N/S:U/UI:Nsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:Nsecondary · cve@mitre.org USexploitability 2.2 · impact 4.2

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-190USprimaryCWE-120US

affected products (13)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
NETGEAR D7800≤ 1.0.1.68fstec_bduRU
NETGEAR EX6200v2≤ 1.0.1.90fstec_bduRU
NETGEAR EX8000≤ 1.0.1.240fstec_bduRU
NETGEAR R6220≤ 1.1.0.112fstec_bduRU
NETGEAR R6230≤ 1.1.0.112fstec_bduRU
NETGEAR R6400v2≤ 1.0.4.122fstec_bduRU
NETGEAR R6700v3≤ 1.0.4.122fstec_bduRU
NETGEAR R7000≤ 1.0.11.130fstec_bduRU
NETGEAR R7800≤ 1.0.2.90fstec_bduRU
netgear d7800 firmware< 1.0.1.68nvdUScpe:2.3:o:netgear:d7800_firmware:*:*:*:*:*:*:*:*
netgear r6400v2 firmware< 1.0.4.122nvdUScpe:2.3:o:netgear:r6400v2_firmware:*:*:*:*:*:*:*:*
netgear r6700v3 firmware< 1.0.4.122nvdUScpe:2.3:o:netgear:r6700v3_firmware:*:*:*:*:*:*:*:*

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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+4644 more

references (8)

External citations — patches, advisories, analysis.

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