CVE-2021-34865

highpriority · track · 36EPSS 0.031 · 88 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

3.08% (88th) EPSS

CVSS 8.3 · high

Is it mine?

18 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of multiple NETGEAR routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-13313.

cvss

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

8.8

010

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

v2.08.3highAV:A/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 6.5 · impact 10

v3.18.8highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.08.8highCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.08.8highCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · zdi-disclosures@trendmicro.comexploitability 2.8 · impact 5.9

v3.18.1highCVSS:3.1/AV:A/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-697USprimaryCWE-287US

affected products (18)

Products and version ranges known to be affected.

Netgear Multiple Routers≤ 1.2.0.76_1.0.1enisa_euvdEU
netgear ac2100 firmware< 1.2.0.88nvdUScpe:2.3:o:netgear:ac2100_firmware:*:*:*:*:*:*:*:*
netgear ac2400 firmware< 1.2.0.88nvdUScpe:2.3:o:netgear:ac2400_firmware:*:*:*:*:*:*:*:*
netgear ac2600 firmware< 1.2.0.88nvdUScpe:2.3:o:netgear:ac2600_firmware:*:*:*:*:*:*:*:*
netgear d7000v1 firmware< 1.0.1.80nvdUScpe:2.3:o:netgear:d7000v1_firmware:*:*:*:*:*:*:*:*
netgear r6220 firmware< 1.1.0.110nvdUScpe:2.3:o:netgear:r6220_firmware:*:*:*:*:*:*:*:*
netgear r6230 firmware< 1.1.0.110nvdUScpe:2.3:o:netgear:r6230_firmware:*:*:*:*:*:*:*:*
netgear r6260 firmware< 1.1.0.84nvdUScpe:2.3:o:netgear:r6260_firmware:*:*:*:*:*:*:*:*
netgear r6330 firmware< 1.1.0.84nvdUScpe:2.3:o:netgear:r6330_firmware:*:*:*:*:*:*:*:*
netgear r6350 firmware< 1.1.0.84nvdUScpe:2.3:o:netgear:r6350_firmware:*:*:*:*:*:*:*:*
netgear r6700v2 firmware< 1.2.0.88nvdUScpe:2.3:o:netgear:r6700v2_firmware:*:*:*:*:*:*:*:*
netgear r6800 firmware< 1.2.0.88nvdUScpe:2.3:o:netgear:r6800_firmware:*:*:*:*:*:*:*:*
netgear r6850 firmware< 1.1.0.84nvdUScpe:2.3:o:netgear:r6850_firmware:*:*:*:*:*:*:*:*
netgear r6900v2 firmware< 1.2.0.88nvdUScpe:2.3:o:netgear:r6900v2_firmware:*:*:*:*:*:*:*:*
netgear r7200 firmware< 1.2.0.88nvdUScpe:2.3:o:netgear:r7200_firmware:*:*:*:*:*:*:*:*
netgear r7350 firmware< 1.2.0.88nvdUScpe:2.3:o:netgear:r7350_firmware:*:*:*:*:*:*:*:*
netgear r7400 firmware< 1.2.0.88nvdUScpe:2.3:o:netgear:r7400_firmware:*:*:*:*:*:*:*:*
netgear r7450 firmware< 1.2.0.88nvdUScpe:2.3:o:netgear:r7450_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 2022-01-25modified 2026-06-17

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+216 more

references (8)

External citations — patches, advisories, analysis.

scry

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