FKIE_CVE-2021-35053

Vulnerability from fkie_nvd - Published: 2021-11-03 20:15 - Updated: 2026-06-17 03:57
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Possible system denial of service in case of arbitrary changing Firefox browser parameters. An attacker could change specific Firefox browser parameters file in a certain way and then reboot the system to make the system unbootable.
References
vulnerability@kaspersky.comhttps://support.kaspersky.com/general/vulnerability.aspx?el=12430#01112021Broken Link
vulnerability@kaspersky.comhttps://www.zerodayinitiative.com/advisories/ZDI-21-1280/Third Party Advisory, VDB Entry
vulnerability@kaspersky.comhttps://www.zerodayinitiative.com/advisories/ZDI-22-431/Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://support.kaspersky.com/general/vulnerability.aspx?el=12430#01112021Broken Link
af854a3a-2127-422b-91ae-364da2661108https://www.zerodayinitiative.com/advisories/ZDI-21-1280/Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://www.zerodayinitiative.com/advisories/ZDI-22-431/Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
kaspersky endpoint_security *
microsoft windows -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Kaspersky Endpoint Security for Windows",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "KES versions from 11.1 to 11.6 (inclusively)"
            }
          ]
        }
      ],
      "source": "vulnerability@kaspersky.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:kaspersky:endpoint_security:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C1EAF339-B9C2-4F0D-BAC0-DA29D3BE860D",
              "versionEndIncluding": "11.6.0",
              "versionStartIncluding": "11.1.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Possible system denial of service in case of arbitrary changing Firefox browser parameters. An attacker could change specific Firefox browser parameters file in a certain way and then reboot the system to make the system unbootable."
    },
    {
      "lang": "es",
      "value": "Una posible denegaci\u00f3n de servicio del sistema en caso de cambio arbitrario de los par\u00e1metros del navegador Firefox. Un atacante podr\u00eda cambiar un archivo espec\u00edfico de par\u00e1metros del navegador Firefox de una manera determinada y luego reiniciar el sistema para hacer que el sistema no pueda arrancar"
    }
  ],
  "id": "CVE-2021-35053",
  "lastModified": "2026-06-17T03:57:02.977",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.8,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-11-03T20:15:08.347",
  "references": [
    {
      "source": "vulnerability@kaspersky.com",
      "tags": [
        "Broken Link"
      ],
      "url": "https://support.kaspersky.com/general/vulnerability.aspx?el=12430#01112021"
    },
    {
      "source": "vulnerability@kaspersky.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1280/"
    },
    {
      "source": "vulnerability@kaspersky.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-22-431/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ],
      "url": "https://support.kaspersky.com/general/vulnerability.aspx?el=12430#01112021"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1280/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-22-431/"
    }
  ],
  "sourceIdentifier": "vulnerability@kaspersky.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    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.