GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2021-20738 (GCVE-0-2021-20738)

Vulnerability from cvelistv5 – Published: 2021-07-07 07:05 – Updated: 2024-08-03 17:53
VLAI
Summary
WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA all versions allow an unauthenticated network-adjacent attacker to obtain sensitive information via unspecified vectors.
CWE
  • Information Disclosure
References
Impacted products
Vendor Product Version CPE status
ELECOM CO.,LTD. WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA Affected: all versions
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:53:21.857Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.elecom.co.jp/news/security/20210706-01/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://jvn.jp/en/vu/JVNVU94260088/index.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA",
          "vendor": "ELECOM CO.,LTD.",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA all versions allow an unauthenticated network-adjacent attacker to obtain sensitive information via unspecified vectors."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Information Disclosure",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-07-07T07:05:24.000Z",
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.elecom.co.jp/news/security/20210706-01/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jvn.jp/en/vu/JVNVU94260088/index.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vultures@jpcert.or.jp",
          "ID": "CVE-2021-20738",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "all versions"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "ELECOM CO.,LTD."
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA all versions allow an unauthenticated network-adjacent attacker to obtain sensitive information via unspecified vectors."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Information Disclosure"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.elecom.co.jp/news/security/20210706-01/",
              "refsource": "MISC",
              "url": "https://www.elecom.co.jp/news/security/20210706-01/"
            },
            {
              "name": "https://jvn.jp/en/vu/JVNVU94260088/index.html",
              "refsource": "MISC",
              "url": "https://jvn.jp/en/vu/JVNVU94260088/index.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2021-20738",
    "datePublished": "2021-07-07T07:05:24.000Z",
    "dateReserved": "2020-12-17T00:00:00.000Z",
    "dateUpdated": "2024-08-03T17:53:21.857Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-20738",
      "date": "2026-09-16",
      "epss": "0.00407",
      "percentile": "0.34476"
    },
    "fkie_nvd": {
      "configurations": "[{\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:elecom:wrc-1167fs-w_firmware:*:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"32BB042A-973D-4071-9115-71E0E23B5E17\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:elecom:wrc-1167fs-w:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"6480B42F-D31C-474D-98B8-687190848435\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:elecom:wrc-1167fs-b_firmware:*:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"97CB05BB-87CA-4946-8DD6-3A0F9E063CD7\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:elecom:wrc-1167fs-b:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"779CF807-E062-46DB-9FA6-02868954E775\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:elecom:wrc-1167fsa_firmware:*:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"13602337-BBEE-49BF-966B-E0C8CA0ABF8A\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:elecom:wrc-1167fsa:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"075D2CA0-9D9C-44F8-804F-42A8BBAF076F\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA all versions allow an unauthenticated network-adjacent attacker to obtain sensitive information via unspecified vectors.\"}, {\"lang\": \"es\", \"value\": \"WRC-1167FS-W, WRC-1167FS-B y WRC-1167FSA todas las versiones permiten a un atacante no autenticado adyacente a la red obtener informaci\\u00f3n confidencial por medio de vectores no especificados\"}]",
      "id": "CVE-2021-20738",
      "lastModified": "2024-11-21T05:47:06.430",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\", \"baseScore\": 6.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"ADJACENT_NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:A/AC:L/Au:N/C:P/I:N/A:N\", \"baseScore\": 3.3, \"accessVector\": \"ADJACENT_NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"LOW\", \"exploitabilityScore\": 6.5, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2021-07-07T08:15:07.737",
      "references": "[{\"url\": \"https://jvn.jp/en/vu/JVNVU94260088/index.html\", \"source\": \"vultures@jpcert.or.jp\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.elecom.co.jp/news/security/20210706-01/\", \"source\": \"vultures@jpcert.or.jp\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://jvn.jp/en/vu/JVNVU94260088/index.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.elecom.co.jp/news/security/20210706-01/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "vultures@jpcert.or.jp",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-20738\",\"sourceIdentifier\":\"vultures@jpcert.or.jp\",\"published\":\"2021-07-07T08:15:07.737\",\"lastModified\":\"2024-11-21T05:47:06.430\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA all versions allow an unauthenticated network-adjacent attacker to obtain sensitive information via unspecified vectors.\"},{\"lang\":\"es\",\"value\":\"WRC-1167FS-W, WRC-1167FS-B y WRC-1167FSA todas las versiones permiten a un atacante no autenticado adyacente a la red obtener informaci\u00f3n confidencial por medio de vectores no especificados\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:A/AC:L/Au:N/C:P/I:N/A:N\",\"baseScore\":3.3,\"accessVector\":\"ADJACENT_NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":6.5,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:elecom:wrc-1167fs-w_firmware:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"32BB042A-973D-4071-9115-71E0E23B5E17\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:elecom:wrc-1167fs-w:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6480B42F-D31C-474D-98B8-687190848435\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:elecom:wrc-1167fs-b_firmware:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"97CB05BB-87CA-4946-8DD6-3A0F9E063CD7\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:elecom:wrc-1167fs-b:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"779CF807-E062-46DB-9FA6-02868954E775\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:elecom:wrc-1167fsa_firmware:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"13602337-BBEE-49BF-966B-E0C8CA0ABF8A\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:elecom:wrc-1167fsa:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"075D2CA0-9D9C-44F8-804F-42A8BBAF076F\"}]}]}],\"references\":[{\"url\":\"https://jvn.jp/en/vu/JVNVU94260088/index.html\",\"source\":\"vultures@jpcert.or.jp\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.elecom.co.jp/news/security/20210706-01/\",\"source\":\"vultures@jpcert.or.jp\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://jvn.jp/en/vu/JVNVU94260088/index.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.elecom.co.jp/news/security/20210706-01/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2026-03-27T15:00:26+00:00",
      "cve": "CVE-2021-20738",
      "id": "CVE-2021-20738",
      "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-2021-20738",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-20738.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

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.


Loading…