How severe is CVE-2021-45651?

CVE-2021-45651 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-45651 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45651?

CVE-2021-45651 primarily affects Netgear Rbk50 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-45651?

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-2021-45651 published?

CVE-2021-45651 was published on 2021-12-26 and last updated on 2026-06-17.

CVE-2021-45651

CVE-2021-45651 is a high-severity vulnerability in Netgear Rbk50 Firmware with a CVSS 3.x base score of 7.4. 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-200.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 5.0
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Netgear Rbk50 Firmware
Published: 2021-12-26
Last modified: 2026-06-17

Description

Certain NETGEAR devices are affected by disclosure of sensitive information. This affects RBK50 before 2.7.3.22, RBR50 before 2.7.3.22, and RBS50 before 2.7.3.22.

Frequently asked questions

What is CVE-2021-45651?: Certain NETGEAR devices are affected by disclosure of sensitive information. This affects RBK50 before 2.7.3.22, RBR50 before 2.7.3.22, and RBS50 before 2.7.3.22.
How severe is CVE-2021-45651?: CVE-2021-45651 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-45651 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45651?: CVE-2021-45651 primarily affects Netgear Rbk50 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-45651?: 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-2021-45651 published?: CVE-2021-45651 was published on 2021-12-26 and last updated on 2026-06-17.

References

https://kb.netgear.com/000064441/Security-Advisory-for-Sensitive-Information-Disclosure-on-Some-WiFi-Systems-PSV-2017-3085

Affected products (3)

cpe:2.3:o:netgear:rbk50_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbr50_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbs50_firmware:*:*:*:*:*:*:*:*

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