CVE-2021-45531
CVE-2021-45531 is a high-severity vulnerability in Netgear D6220 Firmware with a CVSS 3.x base score of 7.1. 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-77.
Key facts
- Severity: High (CVSS 3.x base score 7.1)
- CVSS v2: 6.5
- EPSS exploit prediction: 1% (69th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-77
- Affected product: Netgear D6220 Firmware
- Published:
- Last modified:
Description
NETGEAR D6220 devices before 1.0.0.76 are affected by command injection by an authenticated user.
Frequently asked questions
- What is CVE-2021-45531?
- NETGEAR D6220 devices before 1.0.0.76 are affected by command injection by an authenticated user.
- How severe is CVE-2021-45531?
- CVE-2021-45531 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
- Is CVE-2021-45531 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-45531?
- CVE-2021-45531 affects Netgear D6220 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-45531?
- 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-2021-45531 published?
- CVE-2021-45531 was published on 2021-12-26 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:netgear:d6220_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Netgear D6220 Firmware
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- CVE-2019-20730 — Critical (CVSS 9.8): Certain NETGEAR devices are affected by SQL injection. This affects D3600 before 1.0.0.68, D6000 before 1.0.0.68, D6200…
- CVE-2021-45638 — Critical (CVSS 9.6): Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects…
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- CVE-2021-45527 — Critical (CVSS 9.6): Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D6220 before 1.0.0.68,…
All CVEs affecting Netgear D6220 Firmware →
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