CVE-2021-45530 (GCVE-0-2021-45530)

Vulnerability from cvelistv5 – Published: 2021-12-26 00:57 – Updated: 2024-08-04 04:39
VLAI
Summary
Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects R7000 before 1.0.11.126, R7960P before 1.4.2.84, R8000 before 1.0.4.74, RAX200 before 1.0.4.120, R8000P before 1.4.2.84, RAX20 before 1.0.2.82, RAX45 before 1.0.2.82, RAX80 before 1.0.4.120, R7900P before 1.4.2.84, RAX15 before 1.0.2.82, RAX50 before 1.0.2.82, and RAX75 before 1.0.4.120.
Severity
4.5 (Medium)
CVSS:3.1/AC:L/AV:A/A:H/C:N/I:N/PR:H/S:U/UI:N
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

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            "value": "Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects R7000 before 1.0.11.126, R7960P before 1.4.2.84, R8000 before 1.0.4.74, RAX200 before 1.0.4.120, R8000P before 1.4.2.84, RAX20 before 1.0.2.82, RAX45 before 1.0.2.82, RAX80 before 1.0.4.120, R7900P before 1.4.2.84, RAX15 before 1.0.2.82, RAX50 before 1.0.2.82, and RAX75 before 1.0.4.120."
          },
          {
            "lang": "es",
            "value": "Determinados dispositivos NETGEAR est\u00e1n afectados por un desbordamiento del b\u00fafer por parte de un usuario autenticado. Esto afecta a R7000 versiones anteriores a 1.0.11.126, a R7960P versiones anteriores a 1.4.2.84, a R8000 versiones anteriores a 1.0.4.74, a RAX200 versiones anteriores a 1.0.4.120, a R8000P versiones anteriores a 1.4.2.84, a RAX20 versiones anteriores a 1.0.2.82, a RAX45 versiones anteriores a 1.0.2.82, a RAX80 versiones anteriores a 1.0.4.120, a RAX80 versiones anteriores a 1.0.4.120. 0.2.82, RAX45 versiones anteriores a 1.0.2.82, RAX80 versiones anteriores a 1.0.4.120, R7900P versiones anteriores a 1.4.2.84, RAX15 versiones anteriores a 1.0.2.82, RAX50 versiones anteriores a 1.0.2.82 y RAX75 versiones anteriores a 1.0.4.120"
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        "id": "CVE-2021-45530",
        "lastModified": "2026-06-17T04:13:35.060",
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              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
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                "accessVector": "NETWORK",
                "authentication": "SINGLE",
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                "baseScore": 6.5,
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                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 4.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "HIGH",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
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                "confidentialityImpact": "HIGH",
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        "published": "2021-12-26T01:15:14.350",
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            "tags": [
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              "Vendor Advisory"
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            "url": "https://kb.netgear.com/000064486/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Routers-PSV-2020-0320"
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        "vulnStatus": "Modified",
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                "value": "CWE-120"
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      "current_release_date": "2026-03-27T13:15:48+00:00",
      "cve": "CVE-2021-45530",
      "id": "CVE-2021-45530",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2021-45530",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-45530.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.