How severe is CVE-2021-45498?

CVE-2021-45498 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-2021-45498 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45498?

CVE-2021-45498 affects Netgear R6700v2 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45498?

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

When was CVE-2021-45498 published?

CVE-2021-45498 was published on 2021-12-26 and last updated on 2026-06-17.

CVE-2021-45498

CVE-2021-45498 is a medium-severity vulnerability in Netgear R6700v2 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: 10.0
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Netgear R6700v2 Firmware
Published: 2021-12-26
Last modified: 2026-06-17

Description

NETGEAR R6700v2 devices before 1.2.0.88 are affected by authentication bypass.

Frequently asked questions

What is CVE-2021-45498?: NETGEAR R6700v2 devices before 1.2.0.88 are affected by authentication bypass.
How severe is CVE-2021-45498?: CVE-2021-45498 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-2021-45498 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45498?: CVE-2021-45498 affects Netgear R6700v2 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45498?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-45498 published?: CVE-2021-45498 was published on 2021-12-26 and last updated on 2026-06-17.

References

https://kb.netgear.com/000064054/Security-Advisory-for-Authentication-Bypass-on-R6700v2-PSV-2018-0630

Affected products (1)

cpe:2.3:o:netgear:r6700v2_firmware:*:*:*:*:*:*:*:*

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