CVE-2021-45523
CVE-2021-45523 is a medium-severity vulnerability in Netgear R7000 Firmware with a CVSS 3.x base score of 5.7. 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-120.
Key facts
- Severity: Medium (CVSS 3.x base score 5.7)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (59th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-120
- Affected product: Netgear R7000 Firmware
- Published:
- Last modified:
Description
NETGEAR R7000 devices before 1.0.9.42 are affected by a buffer overflow by an authenticated user.
Frequently asked questions
- What is CVE-2021-45523?
- NETGEAR R7000 devices before 1.0.9.42 are affected by a buffer overflow by an authenticated user.
- How severe is CVE-2021-45523?
- CVE-2021-45523 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2021-45523 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-45523?
- CVE-2021-45523 affects Netgear R7000 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-45523?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-45523 published?
- CVE-2021-45523 was published on 2021-12-26 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:*
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