How severe is CVE-2021-45654?

CVE-2021-45654 has a CVSS 3.x base score of 9.6, rated critical 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 high, and availability high.

Is CVE-2021-45654 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45654?

CVE-2021-45654 affects Netgear Xr1000 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45654?

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

When was CVE-2021-45654 published?

CVE-2021-45654 was published on 2021-12-26 and last updated on 2026-06-17.

CVE-2021-45654

CVE-2021-45654 is a critical-severity vulnerability in Netgear Xr1000 Firmware with a CVSS 3.x base score of 9.6. 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: Critical (CVSS 3.x base score 9.6)
CVSS v2: 5.0
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Netgear Xr1000 Firmware
Published: 2021-12-26
Last modified: 2026-06-17

Description

NETGEAR XR1000 devices before 1.0.0.58 are affected by disclosure of sensitive information.

Frequently asked questions

What is CVE-2021-45654?: NETGEAR XR1000 devices before 1.0.0.58 are affected by disclosure of sensitive information.
How severe is CVE-2021-45654?: CVE-2021-45654 has a CVSS 3.x base score of 9.6, rated critical 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 high, and availability high.
Is CVE-2021-45654 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45654?: CVE-2021-45654 affects Netgear Xr1000 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45654?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-45654 published?: CVE-2021-45654 was published on 2021-12-26 and last updated on 2026-06-17.

References

https://kb.netgear.com/000064153/Security-Advisory-for-Sensitive-Information-Disclosure-on-XR1000-PSV-2021-0015

Affected products (1)

cpe:2.3:o:netgear:xr1000_firmware:*:*:*:*:*:*:*:*

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