How severe is CVE-2018-21229?

CVE-2018-21229 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-21229 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-21229?

CVE-2018-21229 primarily affects Netgear R7500 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-21229?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-21229 published?

CVE-2018-21229 was published on 2020-04-24 and last updated on 2026-06-17.

CVE-2018-21229

CVE-2018-21229 is a medium-severity vulnerability in Netgear R7500 Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 3.3
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Netgear R7500 Firmware
Published: 2020-04-24
Last modified: 2026-06-17

Description

Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects R7500v2 before 1.0.3.20, R7800 before 1.0.2.38, WN3000RPv3 before 1.0.2.50, WNDR4300v2 before 1.0.0.50, and WNDR4500v3 before 1.0.0.50.

Frequently asked questions

What is CVE-2018-21229?: Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects R7500v2 before 1.0.3.20, R7800 before 1.0.2.38, WN3000RPv3 before 1.0.2.50, WNDR4300v2 before 1.0.0.50, and WNDR4500v3 before 1.0.0.50.
How severe is CVE-2018-21229?: CVE-2018-21229 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-21229 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-21229?: CVE-2018-21229 primarily affects Netgear R7500 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-21229?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-21229 published?: CVE-2018-21229 was published on 2020-04-24 and last updated on 2026-06-17.

References

https://kb.netgear.com/000055105/Security-Advisory-for-Security-Misconfiguration-on-Some-Routers-and-Extenders-PSV-2016-0124

Affected products (5)

cpe:2.3:o:netgear:r7500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wn3000rp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wndr4500_firmware:*:*:*:*:*:*:*:*

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