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CVE-2021-4465 (GCVE-0-2021-4465)

Vulnerability from cvelistv5 – Published: 2025-11-14 22:51 – Updated: 2026-04-07 14:05
VLAI
Title
ReQuest Serious Play F3 Media Server <= 7.0.3 Remote DoS
Summary
ReQuest Serious Play F3 Media Server versions 7.0.3.4968 (Pro), 7.0.2.4954, 6.5.2.4954, 6.4.2.4681, 6.3.2.4203, and 2.0.1.823 contain a remote denial-of-service vulnerability. The device can be shut down or rebooted by an unauthenticated attacker through a single crafted HTTP GET request, allowing remote interruption of service availability.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-18 16:28 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Impacted products
Vendor Product Version CPE status
ReQuest Serious Play LLC ReQuest Serious Play Pro Affected: 7.0.3.4968
    cpe:2.3:a:request:serious_play_pro:7.0.3.4968:*:*:*:*:*:*:*
Create a notification for this product.
ReQuest Serious Play LLC ReQuest Serious Play Affected: 7.0.2.4954
Affected: 6.5.2.4954
Affected: 6.4.2.4681
Affected: 6.3.2.4203
Affected: 2.0.1.823
    cpe:2.3:a:request:serious_play_pro:7.0.2.4954:*:*:*:*:*:*:*
    cpe:2.3:a:request:serious_play_pro:6.5.2.4954:*:*:*:*:*:*:*
    cpe:2.3:a:request:serious_play_pro:6.4.2.4681:*:*:*:*:*:*:*
    cpe:2.3:a:request:serious_play_pro:6.3.2.4203:*:*:*:*:*:*:*
    cpe:2.3:a:request:serious_play_pro:2.0.1.823:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2020-10-26 00:00
Show details on NVD website

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                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "NONE",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-400",
                  "description": "CWE-400 Uncontrolled Resource Consumption",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-12-05T12:08:15.315Z",
            "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
            "shortName": "VulnCheck"
          },
          "references": [
            {
              "tags": [
                "technical-description",
                "exploit"
              ],
              "url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5601.php"
            },
            {
              "tags": [
                "exploit"
              ],
              "url": "https://www.exploit-db.com/exploits/48951"
            },
            {
              "tags": [
                "exploit"
              ],
              "url": "https://packetstorm.news/files/id/159602"
            },
            {
              "tags": [
                "exploit"
              ],
              "url": "https://cxsecurity.com/issue/WLB-2020100122"
            },
            {
              "tags": [
                "vdb-entry"
              ],
              "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/190031"
            },
            {
              "tags": [
                "product"
              ],
              "url": "http://www.request.com/"
            },
            {
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://www.vulncheck.com/advisories/request-serious-play-f3-media-server-remote-dos"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "timeline": [
            {
              "lang": "en",
              "time": "2020-10-18T16:00:00.000Z",
              "value": "ZSL-2020-5601 is publicly disclosed."
            }
          ],
          "title": "ReQuest Serious Play F3 Media Server \u003c= 7.0.3 Remote DoS",
          "x_generator": {
            "engine": "vulncheck"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "assignerShortName": "VulnCheck",
        "cveId": "CVE-2021-4465",
        "datePublished": "2025-11-14T22:51:28.004Z",
        "dateReserved": "2025-11-14T18:47:13.964Z",
        "dateUpdated": "2025-12-05T12:08:15.315Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.

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Detection rules are retrieved from Rulezet.

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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.


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