CVE-2016-8339 (GCVE-0-2016-8339)

Vulnerability from cvelistv5 – Published: 2016-10-28 14:00 – Updated: 2024-08-06 02:20
VLAI
Summary
A buffer overflow in Redis 3.2.x prior to 3.2.4 causes arbitrary code execution when a crafted command is sent. An out of bounds write vulnerability exists in the handling of the client-output-buffer-limit option during the CONFIG SET command for the Redis data structure store. A crafted CONFIG SET command can lead to an out of bounds write potentially resulting in code execution.
CWE
  • Arbitrary Code Execution
Assigner
talos CNA under the mitre root
CNA scorecard C 60/100 over 46 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Redis Redis Affected: 3.2.x prior to 3.2.4
guessed Create a notification for this product.
Date Public
2016-09-30 00:00
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T02:20:30.582Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "93283",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/93283"
          },
          {
            "name": "GLSA-201702-16",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/201702-16"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/antirez/redis/commit/6d9f8e2462fc2c426d48c941edeb78e5df7d2977"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://www.talosintelligence.com/reports/TALOS-2016-0206/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Redis",
          "vendor": "Redis",
          "versions": [
            {
              "status": "affected",
              "version": "3.2.x prior to 3.2.4"
            }
          ]
        }
      ],
      "datePublic": "2016-09-30T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A buffer overflow in Redis 3.2.x prior to 3.2.4 causes arbitrary code execution when a crafted command is sent. An out of bounds write vulnerability exists in the handling of the client-output-buffer-limit option during the CONFIG SET command for the Redis data structure store. A crafted CONFIG SET command can lead to an out of bounds write potentially resulting in code execution."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Arbitrary Code Execution",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-04-19T19:16:25.000Z",
        "orgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b",
        "shortName": "talos"
      },
      "references": [
        {
          "name": "93283",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/93283"
        },
        {
          "name": "GLSA-201702-16",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/201702-16"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/antirez/redis/commit/6d9f8e2462fc2c426d48c941edeb78e5df7d2977"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://www.talosintelligence.com/reports/TALOS-2016-0206/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "talos-cna@cisco.com",
          "ID": "CVE-2016-8339",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Redis",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "3.2.x prior to 3.2.4"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Redis"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A buffer overflow in Redis 3.2.x prior to 3.2.4 causes arbitrary code execution when a crafted command is sent. An out of bounds write vulnerability exists in the handling of the client-output-buffer-limit option during the CONFIG SET command for the Redis data structure store. A crafted CONFIG SET command can lead to an out of bounds write potentially resulting in code execution."
            }
          ]
        },
        "impact": {
          "cvss": {
            "baseScore": 6.6,
            "baseSeverity": "Medium",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Arbitrary Code Execution"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "93283",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/93283"
            },
            {
              "name": "GLSA-201702-16",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/201702-16"
            },
            {
              "name": "https://github.com/antirez/redis/commit/6d9f8e2462fc2c426d48c941edeb78e5df7d2977",
              "refsource": "MISC",
              "url": "https://github.com/antirez/redis/commit/6d9f8e2462fc2c426d48c941edeb78e5df7d2977"
            },
            {
              "name": "http://www.talosintelligence.com/reports/TALOS-2016-0206/",
              "refsource": "MISC",
              "url": "http://www.talosintelligence.com/reports/TALOS-2016-0206/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b",
    "assignerShortName": "talos",
    "cveId": "CVE-2016-8339",
    "datePublished": "2016-10-28T14:00:00.000Z",
    "dateReserved": "2016-09-28T00:00:00.000Z",
    "dateUpdated": "2024-08-06T02:20:30.582Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2016-8339",
      "date": "2026-10-31",
      "epss": "0.14834",
      "percentile": "0.96691"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:redislabs:redis:3.2.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "54063636-8CE2-408B-BF17-6E68977D4028",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:redislabs:redis:3.2.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "8F4E0B88-C020-47C0-9420-E508B9D196B2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:redislabs:redis:3.2.2:*:*:*:*:*:*:*",
                  "matchCriteriaId": "EC52A6CD-A02A-4153-A353-8BA8AD36EDD1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:redislabs:redis:3.2.3:*:*:*:*:*:*:*",
                  "matchCriteriaId": "227C8FB9-639D-46BD-9484-24F40B3339C1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A buffer overflow in Redis 3.2.x prior to 3.2.4 causes arbitrary code execution when a crafted command is sent. An out of bounds write vulnerability exists in the handling of the client-output-buffer-limit option during the CONFIG SET command for the Redis data structure store. A crafted CONFIG SET command can lead to an out of bounds write potentially resulting in code execution."
        },
        {
          "lang": "es",
          "value": "Un desbordamiento de b\u00fafer en Redis 3.2.x antes de 3.2.4 provoca ejecuci\u00f3n de c\u00f3digo arbitrario cuando un comando manipulado es enviado. Una vulnerabilidad de escritura fuera de l\u00edmites existe en el manejo de la opci\u00f3n client-output-buffer-limit durante el comando CONFIG SET para la estructura de almac\u00e9n de datos Redis. Un comando CONFIG SET manipulado puede llevar a una escritura fuera de l\u00edmites resultando potencialmente en ejecuci\u00f3n de c\u00f3digo."
        }
      ],
      "id": "CVE-2016-8339",
      "lastModified": "2024-11-21T02:59:11.240",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "HIGH",
            "cvssData": {
              "accessComplexity": "LOW",
              "accessVector": "NETWORK",
              "authentication": "NONE",
              "availabilityImpact": "PARTIAL",
              "baseScore": 7.5,
              "confidentialityImpact": "PARTIAL",
              "integrityImpact": "PARTIAL",
              "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
              "version": "2.0"
            },
            "exploitabilityScore": 10.0,
            "impactScore": 6.4,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV30": [
          {
            "cvssData": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 6.6,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "HIGH",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.0"
            },
            "exploitabilityScore": 0.7,
            "impactScore": 5.9,
            "source": "talos-cna@cisco.com",
            "type": "Secondary"
          }
        ],
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            },
            "exploitabilityScore": 3.9,
            "impactScore": 5.9,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2016-10-28T14:59:01.603",
      "references": [
        {
          "source": "talos-cna@cisco.com",
          "tags": [
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://www.securityfocus.com/bid/93283"
        },
        {
          "source": "talos-cna@cisco.com",
          "tags": [
            "Exploit",
            "Third Party Advisory"
          ],
          "url": "http://www.talosintelligence.com/reports/TALOS-2016-0206/"
        },
        {
          "source": "talos-cna@cisco.com",
          "tags": [
            "Patch",
            "Third Party Advisory"
          ],
          "url": "https://github.com/antirez/redis/commit/6d9f8e2462fc2c426d48c941edeb78e5df7d2977"
        },
        {
          "source": "talos-cna@cisco.com",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://security.gentoo.org/glsa/201702-16"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://www.securityfocus.com/bid/93283"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Exploit",
            "Third Party Advisory"
          ],
          "url": "http://www.talosintelligence.com/reports/TALOS-2016-0206/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch",
            "Third Party Advisory"
          ],
          "url": "https://github.com/antirez/redis/commit/6d9f8e2462fc2c426d48c941edeb78e5df7d2977"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://security.gentoo.org/glsa/201702-16"
        }
      ],
      "sourceIdentifier": "talos-cna@cisco.com",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-787"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:redislabs:redis:3.2.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "54063636-8CE2-408B-BF17-6E68977D4028",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:redislabs:redis:3.2.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "8F4E0B88-C020-47C0-9420-E508B9D196B2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:redislabs:redis:3.2.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "EC52A6CD-A02A-4153-A353-8BA8AD36EDD1",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:redislabs:redis:3.2.3:*:*:*:*:*:*:*",
                    "matchCriteriaId": "227C8FB9-639D-46BD-9484-24F40B3339C1",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A buffer overflow in Redis 3.2.x prior to 3.2.4 causes arbitrary code execution when a crafted command is sent. An out of bounds write vulnerability exists in the handling of the client-output-buffer-limit option during the CONFIG SET command for the Redis data structure store. A crafted CONFIG SET command can lead to an out of bounds write potentially resulting in code execution."
          },
          {
            "lang": "es",
            "value": "Un desbordamiento de b\u00fafer en Redis 3.2.x antes de 3.2.4 provoca ejecuci\u00f3n de c\u00f3digo arbitrario cuando un comando manipulado es enviado. Una vulnerabilidad de escritura fuera de l\u00edmites existe en el manejo de la opci\u00f3n client-output-buffer-limit durante el comando CONFIG SET para la estructura de almac\u00e9n de datos Redis. Un comando CONFIG SET manipulado puede llevar a una escritura fuera de l\u00edmites resultando potencialmente en ejecuci\u00f3n de c\u00f3digo."
          }
        ],
        "id": "CVE-2016-8339",
        "lastModified": "2026-05-06T22:30:45.220",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "HIGH",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 7.5,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "impactScore": 6.4,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 6.6,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "HIGH",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.0"
              },
              "exploitabilityScore": 0.7,
              "impactScore": 5.9,
              "source": "talos-cna@cisco.com",
              "type": "Secondary"
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 9.8,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2016-10-28T14:59:01.603",
        "references": [
          {
            "source": "talos-cna@cisco.com",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/93283"
          },
          {
            "source": "talos-cna@cisco.com",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "http://www.talosintelligence.com/reports/TALOS-2016-0206/"
          },
          {
            "source": "talos-cna@cisco.com",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://github.com/antirez/redis/commit/6d9f8e2462fc2c426d48c941edeb78e5df7d2977"
          },
          {
            "source": "talos-cna@cisco.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.gentoo.org/glsa/201702-16"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/93283"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "http://www.talosintelligence.com/reports/TALOS-2016-0206/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://github.com/antirez/redis/commit/6d9f8e2462fc2c426d48c941edeb78e5df7d2977"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.gentoo.org/glsa/201702-16"
          }
        ],
        "sourceIdentifier": "talos-cna@cisco.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T11:37:00+00:00",
      "cve": "CVE-2016-8339",
      "id": "CVE-2016-8339",
      "initial_release_date": "2016-09-30T00:00:00+00:00",
      "product_status:known_not_affected": "18",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "redis: OOB write vulnerability in handling of client-output-buffer-limit option during the CONFIG SET command",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-8339.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "critical",
      "current_release_date": "2025-10-07T10:49:01Z",
      "cve": "CVE-2016-8339",
      "id": "CVE-2016-8339",
      "initial_release_date": "2023-02-15T04:57:09Z",
      "product_status:recommended": "37",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2016-8339",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-8339.json",
      "version": "9"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Events included in the timeline

Loading timeline…


    Loading…

    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.