CVE-2007-4897 (GCVE-0-2007-4897)
Vulnerability from cvelistv5 – Published: 2007-09-14 18:00 – Updated: 2024-08-07 15:08
VLAI
EPSS
VEX
Summary
pwlib, as used by Ekiga 2.0.5 and possibly other products, allows remote attackers to cause a denial of service (application crash) via a long argument to the PString::vsprintf function, related to a "memory management flaw". NOTE: this issue was originally reported as being in the SIPURL::GetHostAddress function in Ekiga (formerly GnomeMeeting).
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
18 references
Date Public
2007-09-11 00:00
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-07T15:08:33.970Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "28385",
"tags": [
"third-party-advisory",
"x_refsource_SECUNIA",
"x_transferred"
],
"url": "http://secunia.com/advisories/28385"
},
{
"name": "USN-561-1",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU",
"x_transferred"
],
"url": "http://www.ubuntu.com/usn/usn-561-1"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=292831"
},
{
"name": "20070912 S21SEC-036-EN Ekiga \u003c= 2.0.5 Denial of service",
"tags": [
"mailing-list",
"x_refsource_BUGTRAQ",
"x_transferred"
],
"url": "http://www.securityfocus.com/archive/1/479185/100/0/threaded"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://blog.s21sec.com/2007/09/sobre-la-vulnerabilidad-del-ekiga.html"
},
{
"name": "1018683",
"tags": [
"vdb-entry",
"x_refsource_SECTRACK",
"x_transferred"
],
"url": "http://www.securitytracker.com/id?1018683"
},
{
"name": "27150",
"tags": [
"third-party-advisory",
"x_refsource_SECUNIA",
"x_transferred"
],
"url": "http://secunia.com/advisories/27150"
},
{
"name": "3138",
"tags": [
"third-party-advisory",
"x_refsource_SREASON",
"x_transferred"
],
"url": "http://securityreason.com/securityalert/3138"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://openh323.cvs.sourceforge.net/openh323/opal/src/sip/sipcon.cxx?r1=2.120.2.25\u0026r2=2.120.2.26\u0026pathrev=v2_2_9"
},
{
"name": "20070912 S21SEC-036-EN Ekiga \u003c= 2.0.5 Denial of service",
"tags": [
"mailing-list",
"x_refsource_FULLDISC",
"x_transferred"
],
"url": "http://marc.info/?l=full-disclosure\u0026m=118959114522339\u0026w=2"
},
{
"name": "ekiga-sipurlgethostaddress-dos(36568)",
"tags": [
"vdb-entry",
"x_refsource_XF",
"x_transferred"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/36568"
},
{
"name": "27127",
"tags": [
"third-party-advisory",
"x_refsource_SECUNIA",
"x_transferred"
],
"url": "http://secunia.com/advisories/27127"
},
{
"name": "25642",
"tags": [
"vdb-entry",
"x_refsource_BID",
"x_transferred"
],
"url": "http://www.securityfocus.com/bid/25642"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://www.s21sec.com/avisos/s21sec-036-en.txt"
},
{
"name": "27518",
"tags": [
"third-party-advisory",
"x_refsource_SECUNIA",
"x_transferred"
],
"url": "http://secunia.com/advisories/27518"
},
{
"name": "oval:org.mitre.oval:def:10928",
"tags": [
"vdb-entry",
"signature",
"x_refsource_OVAL",
"x_transferred"
],
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10928"
},
{
"name": "MDKSA-2007:206",
"tags": [
"vendor-advisory",
"x_refsource_MANDRIVA",
"x_transferred"
],
"url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:206"
},
{
"name": "RHSA-2007:0932",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT",
"x_transferred"
],
"url": "http://www.redhat.com/support/errata/RHSA-2007-0932.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"datePublic": "2007-09-11T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "pwlib, as used by Ekiga 2.0.5 and possibly other products, allows remote attackers to cause a denial of service (application crash) via a long argument to the PString::vsprintf function, related to a \"memory management flaw\". NOTE: this issue was originally reported as being in the SIPURL::GetHostAddress function in Ekiga (formerly GnomeMeeting)."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2018-10-15T20:57:01.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"name": "28385",
"tags": [
"third-party-advisory",
"x_refsource_SECUNIA"
],
"url": "http://secunia.com/advisories/28385"
},
{
"name": "USN-561-1",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU"
],
"url": "http://www.ubuntu.com/usn/usn-561-1"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=292831"
},
{
"name": "20070912 S21SEC-036-EN Ekiga \u003c= 2.0.5 Denial of service",
"tags": [
"mailing-list",
"x_refsource_BUGTRAQ"
],
"url": "http://www.securityfocus.com/archive/1/479185/100/0/threaded"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://blog.s21sec.com/2007/09/sobre-la-vulnerabilidad-del-ekiga.html"
},
{
"name": "1018683",
"tags": [
"vdb-entry",
"x_refsource_SECTRACK"
],
"url": "http://www.securitytracker.com/id?1018683"
},
{
"name": "27150",
"tags": [
"third-party-advisory",
"x_refsource_SECUNIA"
],
"url": "http://secunia.com/advisories/27150"
},
{
"name": "3138",
"tags": [
"third-party-advisory",
"x_refsource_SREASON"
],
"url": "http://securityreason.com/securityalert/3138"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://openh323.cvs.sourceforge.net/openh323/opal/src/sip/sipcon.cxx?r1=2.120.2.25\u0026r2=2.120.2.26\u0026pathrev=v2_2_9"
},
{
"name": "20070912 S21SEC-036-EN Ekiga \u003c= 2.0.5 Denial of service",
"tags": [
"mailing-list",
"x_refsource_FULLDISC"
],
"url": "http://marc.info/?l=full-disclosure\u0026m=118959114522339\u0026w=2"
},
{
"name": "ekiga-sipurlgethostaddress-dos(36568)",
"tags": [
"vdb-entry",
"x_refsource_XF"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/36568"
},
{
"name": "27127",
"tags": [
"third-party-advisory",
"x_refsource_SECUNIA"
],
"url": "http://secunia.com/advisories/27127"
},
{
"name": "25642",
"tags": [
"vdb-entry",
"x_refsource_BID"
],
"url": "http://www.securityfocus.com/bid/25642"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://www.s21sec.com/avisos/s21sec-036-en.txt"
},
{
"name": "27518",
"tags": [
"third-party-advisory",
"x_refsource_SECUNIA"
],
"url": "http://secunia.com/advisories/27518"
},
{
"name": "oval:org.mitre.oval:def:10928",
"tags": [
"vdb-entry",
"signature",
"x_refsource_OVAL"
],
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10928"
},
{
"name": "MDKSA-2007:206",
"tags": [
"vendor-advisory",
"x_refsource_MANDRIVA"
],
"url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:206"
},
{
"name": "RHSA-2007:0932",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "http://www.redhat.com/support/errata/RHSA-2007-0932.html"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2007-4897",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "pwlib, as used by Ekiga 2.0.5 and possibly other products, allows remote attackers to cause a denial of service (application crash) via a long argument to the PString::vsprintf function, related to a \"memory management flaw\". NOTE: this issue was originally reported as being in the SIPURL::GetHostAddress function in Ekiga (formerly GnomeMeeting)."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "28385",
"refsource": "SECUNIA",
"url": "http://secunia.com/advisories/28385"
},
{
"name": "USN-561-1",
"refsource": "UBUNTU",
"url": "http://www.ubuntu.com/usn/usn-561-1"
},
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=292831",
"refsource": "CONFIRM",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=292831"
},
{
"name": "20070912 S21SEC-036-EN Ekiga \u003c= 2.0.5 Denial of service",
"refsource": "BUGTRAQ",
"url": "http://www.securityfocus.com/archive/1/479185/100/0/threaded"
},
{
"name": "http://blog.s21sec.com/2007/09/sobre-la-vulnerabilidad-del-ekiga.html",
"refsource": "MISC",
"url": "http://blog.s21sec.com/2007/09/sobre-la-vulnerabilidad-del-ekiga.html"
},
{
"name": "1018683",
"refsource": "SECTRACK",
"url": "http://www.securitytracker.com/id?1018683"
},
{
"name": "27150",
"refsource": "SECUNIA",
"url": "http://secunia.com/advisories/27150"
},
{
"name": "3138",
"refsource": "SREASON",
"url": "http://securityreason.com/securityalert/3138"
},
{
"name": "http://openh323.cvs.sourceforge.net/openh323/opal/src/sip/sipcon.cxx?r1=2.120.2.25\u0026r2=2.120.2.26\u0026pathrev=v2_2_9",
"refsource": "MISC",
"url": "http://openh323.cvs.sourceforge.net/openh323/opal/src/sip/sipcon.cxx?r1=2.120.2.25\u0026r2=2.120.2.26\u0026pathrev=v2_2_9"
},
{
"name": "20070912 S21SEC-036-EN Ekiga \u003c= 2.0.5 Denial of service",
"refsource": "FULLDISC",
"url": "http://marc.info/?l=full-disclosure\u0026m=118959114522339\u0026w=2"
},
{
"name": "ekiga-sipurlgethostaddress-dos(36568)",
"refsource": "XF",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/36568"
},
{
"name": "27127",
"refsource": "SECUNIA",
"url": "http://secunia.com/advisories/27127"
},
{
"name": "25642",
"refsource": "BID",
"url": "http://www.securityfocus.com/bid/25642"
},
{
"name": "http://www.s21sec.com/avisos/s21sec-036-en.txt",
"refsource": "MISC",
"url": "http://www.s21sec.com/avisos/s21sec-036-en.txt"
},
{
"name": "27518",
"refsource": "SECUNIA",
"url": "http://secunia.com/advisories/27518"
},
{
"name": "oval:org.mitre.oval:def:10928",
"refsource": "OVAL",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10928"
},
{
"name": "MDKSA-2007:206",
"refsource": "MANDRIVA",
"url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:206"
},
{
"name": "RHSA-2007:0932",
"refsource": "REDHAT",
"url": "http://www.redhat.com/support/errata/RHSA-2007-0932.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2007-4897",
"datePublished": "2007-09-14T18:00:00.000Z",
"dateReserved": "2007-09-14T00:00:00.000Z",
"dateUpdated": "2024-08-07T15:08:33.970Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2007-4897",
"date": "2026-10-13",
"epss": "0.10897",
"percentile": "0.95792"
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:ekiga:ekiga:2.0.5:*:*:*:*:*:*:*",
"matchCriteriaId": "B22A5AD1-0410-4EF1-A826-DCBE1859EFDB",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "pwlib, as used by Ekiga 2.0.5 and possibly other products, allows remote attackers to cause a denial of service (application crash) via a long argument to the PString::vsprintf function, related to a \"memory management flaw\". NOTE: this issue was originally reported as being in the SIPURL::GetHostAddress function in Ekiga (formerly GnomeMeeting)."
},
{
"lang": "es",
"value": "pwlib, tal y como es usada por Ekiga versi\u00f3n 2.0.5 y posiblemente otros productos, permite a atacantes remotos causar una denegaci\u00f3n de servicio (bloqueo de aplicaci\u00f3n) por medio de un argumento largo en la funci\u00f3n PString::vsprintf, relacionado con un \"memory management flaw\". NOTA: este problema se report\u00f3 originalmente como estando en la funci\u00f3n SIPURL::GetHostAddress en Ekiga (anteriormente GnomeMeeting)."
}
],
"id": "CVE-2007-4897",
"lastModified": "2026-04-23T00:35:47.467",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2007-09-14T18:17:00.000",
"references": [
{
"source": "cve@mitre.org",
"url": "http://blog.s21sec.com/2007/09/sobre-la-vulnerabilidad-del-ekiga.html"
},
{
"source": "cve@mitre.org",
"url": "http://marc.info/?l=full-disclosure\u0026m=118959114522339\u0026w=2"
},
{
"source": "cve@mitre.org",
"url": "http://openh323.cvs.sourceforge.net/openh323/opal/src/sip/sipcon.cxx?r1=2.120.2.25\u0026r2=2.120.2.26\u0026pathrev=v2_2_9"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/27127"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/27150"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/27518"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/28385"
},
{
"source": "cve@mitre.org",
"url": "http://securityreason.com/securityalert/3138"
},
{
"source": "cve@mitre.org",
"url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:206"
},
{
"source": "cve@mitre.org",
"url": "http://www.redhat.com/support/errata/RHSA-2007-0932.html"
},
{
"source": "cve@mitre.org",
"url": "http://www.s21sec.com/avisos/s21sec-036-en.txt"
},
{
"source": "cve@mitre.org",
"url": "http://www.securityfocus.com/archive/1/479185/100/0/threaded"
},
{
"source": "cve@mitre.org",
"url": "http://www.securityfocus.com/bid/25642"
},
{
"source": "cve@mitre.org",
"url": "http://www.securitytracker.com/id?1018683"
},
{
"source": "cve@mitre.org",
"url": "http://www.ubuntu.com/usn/usn-561-1"
},
{
"source": "cve@mitre.org",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=292831"
},
{
"source": "cve@mitre.org",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/36568"
},
{
"source": "cve@mitre.org",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10928"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://blog.s21sec.com/2007/09/sobre-la-vulnerabilidad-del-ekiga.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://marc.info/?l=full-disclosure\u0026m=118959114522339\u0026w=2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://openh323.cvs.sourceforge.net/openh323/opal/src/sip/sipcon.cxx?r1=2.120.2.25\u0026r2=2.120.2.26\u0026pathrev=v2_2_9"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/27127"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/27150"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/27518"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/28385"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://securityreason.com/securityalert/3138"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:206"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.redhat.com/support/errata/RHSA-2007-0932.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.s21sec.com/avisos/s21sec-036-en.txt"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/archive/1/479185/100/0/threaded"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/25642"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securitytracker.com/id?1018683"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.ubuntu.com/usn/usn-561-1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=292831"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/36568"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10928"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-399"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-01-13T20:42:08+00:00",
"cve": "CVE-2007-4897",
"id": "CVE-2007-4897",
"initial_release_date": "2007-09-12T00:00:00+00:00",
"product_status:fixed": "21",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "ekiga GetHostAddress remote DoS",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2007/cve-2007-4897.json",
"version": "3"
}
}
}
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.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.