How severe is CVE-2021-45077?

CVE-2021-45077 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-45077 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45077?

CVE-2021-45077 affects Netgear R6700 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45077?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-45077 published?

CVE-2021-45077 was published on 2021-12-30 and last updated on 2026-06-17.

CVE-2021-45077

CVE-2021-45077 is a high-severity vulnerability in Netgear R6700 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-312.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-312
Affected product: Netgear R6700 Firmware
Published: 2021-12-30
Last modified: 2026-06-17

Description

Netgear Nighthawk R6700 version 1.0.4.120 stores sensitive information in plaintext. All usernames and passwords for the device's associated services are stored in plaintext on the device. For example, the admin password is stored in plaintext in the primary configuration file on the device.

Frequently asked questions

What is CVE-2021-45077?: Netgear Nighthawk R6700 version 1.0.4.120 stores sensitive information in plaintext. All usernames and passwords for the device's associated services are stored in plaintext on the device. For example, the admin password is stored in plaintext in the primary configuration file on the device.
How severe is CVE-2021-45077?: CVE-2021-45077 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-45077 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45077?: CVE-2021-45077 affects Netgear R6700 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45077?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-45077 published?: CVE-2021-45077 was published on 2021-12-30 and last updated on 2026-06-17.

References

https://www.tenable.com/security/research/tra-2021-57

Affected products (1)

cpe:2.3:o:netgear:r6700_firmware:1.0.4.120:*:*:*:*:*:*:*

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