CVE-2021-45516
CVE-2021-45516 is a medium-severity vulnerability in Netgear R6400 Firmware with a CVSS 3.x base score of 6.9. 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 6.9)
- CVSS v2: 2.7
- EPSS exploit prediction: 0% (31st percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Netgear R6400 Firmware
- Published:
- Last modified:
Description
Certain NETGEAR devices are affected by denial of service. This affects R6400 before 1.0.1.70, R7000 before 1.0.11.126, R6900P before 1.3.3.140, R7000P before 1.3.3.140, R8000 before 1.0.4.74, RBK852 before 3.2.10.11, RBR850 before 3.2.10.11, and RBS850 before 3.2.10.11.
Frequently asked questions
- What is CVE-2021-45516?
- Certain NETGEAR devices are affected by denial of service. This affects R6400 before 1.0.1.70, R7000 before 1.0.11.126, R6900P before 1.3.3.140, R7000P before 1.3.3.140, R8000 before 1.0.4.74, RBK852 before 3.2.10.11, RBR850 before 3.2.10.11, and RBS850 before 3.2.10.11.
- How severe is CVE-2021-45516?
- CVE-2021-45516 has a CVSS 3.x base score of 6.9, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.
- Is CVE-2021-45516 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-45516?
- CVE-2021-45516 primarily affects Netgear R6400 Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-45516?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-45516 published?
- CVE-2021-45516 was published on 2021-12-26 and last updated on 2026-06-17.
References
Affected products (8)
- cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:r6900p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:r7000p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:r8000_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:rbk852_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:rbr850_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:rbs850_firmware:*:*:*:*:*:*:*:*
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