{"api_version":"1","generated_at":"2026-04-23T09:37:17+00:00","cve":"CVE-2017-8816","urls":{"html":"https://cve.report/CVE-2017-8816","api":"https://cve.report/api/cve/CVE-2017-8816.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2017-8816","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-8816"},"summary":{"title":"CVE-2017-8816","description":"The NTLM authentication feature in curl and libcurl before 7.57.0 on 32-bit platforms allows attackers to cause a denial of service (integer overflow and resultant buffer overflow, and application crash) or possibly have unspecified other impact via vectors involving long user and password fields.","state":"PUBLISHED","assigner":"debian","published_at":"2017-11-29 18:29:00","updated_at":"2026-04-15 21:16:58"},"problem_types":["CWE-190","integer overflow","CWE-190 CWE-190 Integer Overflow or Wraparound"],"metrics":[{"version":"3.1","source":"ADP","type":"DECLARED","score":"9.8","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"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"}},{"version":"3.1","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","score":"9.8","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.0","source":"nvd@nist.gov","type":"Primary","score":"9.8","severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"7.5","severity":"","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"}}],"references":[{"url":"https://www.debian.org/security/2017/dsa-4051","name":"https://www.debian.org/security/2017/dsa-4051","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"title":"Debian -- Security Information -- DSA-4051-1 curl","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securityfocus.com/bid/101998","name":"http://www.securityfocus.com/bid/101998","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"],"title":"cURL/libcURL CVE-2017-8816 Buffer Overflow Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2018:3558","name":"https://access.redhat.com/errata/RHSA-2018:3558","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://security.cucumberlinux.com/security/details.php?id=161","name":"http://security.cucumberlinux.com/security/details.php?id=161","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"title":"CLD-161 Details","mime":"text/html","httpstatus":"200","archivestatus":"503"},{"url":"http://www.securitytracker.com/id/1040608","name":"http://www.securitytracker.com/id/1040608","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Apple macOS/OS X Multiple Flaws Let Remote Users Bypass Security and Obtain Potentially Sensitive Information and Let Local Users Obtain Passwords and Gain Elevated Privileges - SecurityTracker","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://curl.haxx.se/docs/adv_2017-12e7.html","name":"https://curl.haxx.se/docs/adv_2017-12e7.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mitigation","Vendor Advisory"],"title":"curl - NTLM buffer overflow via integer overflow","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securitytracker.com/id/1039896","name":"http://www.securitytracker.com/id/1039896","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"],"title":"libcurl NTLM Buffer Overflow Lets Remote Users Execute Arbitrary Code - SecurityTracker","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.gentoo.org/glsa/201712-04","name":"https://security.gentoo.org/glsa/201712-04","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"title":"cURL: Multiple vulnerabilities (GLSA 201712-04) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-8816","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-8816","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"curl and libcurl before 7.57.0","version":"affected curl and libcurl before 7.57.0","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2017","cve_id":"8816","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"8.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"8816","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"8816","vulnerable":"1","versionEndIncluding":"7.56.1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"haxx","cpe5":"curl","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"8816","vulnerable":"1","versionEndIncluding":"7.56.1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"haxx","cpe5":"libcurl","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2017","cve_id":"8816","cve":"CVE-2017-8816","epss":"0.004540000","percentile":"0.638470000","score_date":"2026-04-15","updated_at":"2026-04-16 00:13:55"},"legacy_qids":[{"cve":"CVE-2017-8816","qid":"500121","title":"Alpine Linux Security Update for curl"},{"cve":"CVE-2017-8816","qid":"503776","title":"Alpine Linux Security Update for curl"},{"cve":"CVE-2017-8816","qid":"710458","title":"Gentoo Linux cURL Multiple Vulnerabilities (GLSA 201712-04)"}]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-05T16:48:21.978Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://security.cucumberlinux.com/security/details.php?id=161"},{"name":"GLSA-201712-04","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred"],"url":"https://security.gentoo.org/glsa/201712-04"},{"name":"RHSA-2018:3558","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"],"url":"https://access.redhat.com/errata/RHSA-2018:3558"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://curl.haxx.se/docs/adv_2017-12e7.html"},{"name":"101998","tags":["vdb-entry","x_refsource_BID","x_transferred"],"url":"http://www.securityfocus.com/bid/101998"},{"name":"1039896","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"],"url":"http://www.securitytracker.com/id/1039896"},{"name":"DSA-4051","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred"],"url":"https://www.debian.org/security/2017/dsa-4051"},{"name":"1040608","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"],"url":"http://www.securitytracker.com/id/1040608"}],"title":"CVE Program Container"},{"metrics":[{"cvssV3_1":{"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"}},{"other":{"content":{"id":"CVE-2017-8816","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-04-15T21:01:08.292898Z","version":"2.0.3"},"type":"ssvc"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-190","description":"CWE-190 Integer Overflow or Wraparound","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-04-15T21:01:32.128Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"curl and libcurl before 7.57.0","vendor":"n/a","versions":[{"status":"affected","version":"curl and libcurl before 7.57.0"}]}],"datePublic":"2017-11-29T00:00:00.000Z","descriptions":[{"lang":"en","value":"The NTLM authentication feature in curl and libcurl before 7.57.0 on 32-bit platforms allows attackers to cause a denial of service (integer overflow and resultant buffer overflow, and application crash) or possibly have unspecified other impact via vectors involving long user and password fields."}],"problemTypes":[{"descriptions":[{"description":"integer overflow","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2018-11-13T10:57:01.000Z","orgId":"79363d38-fa19-49d1-9214-5f28da3f3ac5","shortName":"debian"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"http://security.cucumberlinux.com/security/details.php?id=161"},{"name":"GLSA-201712-04","tags":["vendor-advisory","x_refsource_GENTOO"],"url":"https://security.gentoo.org/glsa/201712-04"},{"name":"RHSA-2018:3558","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2018:3558"},{"tags":["x_refsource_CONFIRM"],"url":"https://curl.haxx.se/docs/adv_2017-12e7.html"},{"name":"101998","tags":["vdb-entry","x_refsource_BID"],"url":"http://www.securityfocus.com/bid/101998"},{"name":"1039896","tags":["vdb-entry","x_refsource_SECTRACK"],"url":"http://www.securitytracker.com/id/1039896"},{"name":"DSA-4051","tags":["vendor-advisory","x_refsource_DEBIAN"],"url":"https://www.debian.org/security/2017/dsa-4051"},{"name":"1040608","tags":["vdb-entry","x_refsource_SECTRACK"],"url":"http://www.securitytracker.com/id/1040608"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security@debian.org","ID":"CVE-2017-8816","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"curl and libcurl before 7.57.0","version":{"version_data":[{"version_value":"curl and libcurl before 7.57.0"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"The NTLM authentication feature in curl and libcurl before 7.57.0 on 32-bit platforms allows attackers to cause a denial of service (integer overflow and resultant buffer overflow, and application crash) or possibly have unspecified other impact via vectors involving long user and password fields."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"integer overflow"}]}]},"references":{"reference_data":[{"name":"http://security.cucumberlinux.com/security/details.php?id=161","refsource":"CONFIRM","url":"http://security.cucumberlinux.com/security/details.php?id=161"},{"name":"GLSA-201712-04","refsource":"GENTOO","url":"https://security.gentoo.org/glsa/201712-04"},{"name":"RHSA-2018:3558","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2018:3558"},{"name":"https://curl.haxx.se/docs/adv_2017-12e7.html","refsource":"CONFIRM","url":"https://curl.haxx.se/docs/adv_2017-12e7.html"},{"name":"101998","refsource":"BID","url":"http://www.securityfocus.com/bid/101998"},{"name":"1039896","refsource":"SECTRACK","url":"http://www.securitytracker.com/id/1039896"},{"name":"DSA-4051","refsource":"DEBIAN","url":"https://www.debian.org/security/2017/dsa-4051"},{"name":"1040608","refsource":"SECTRACK","url":"http://www.securitytracker.com/id/1040608"}]}}}},"cveMetadata":{"assignerOrgId":"79363d38-fa19-49d1-9214-5f28da3f3ac5","assignerShortName":"debian","cveId":"CVE-2017-8816","datePublished":"2017-11-29T18:00:00.000Z","dateReserved":"2017-05-07T00:00:00.000Z","dateUpdated":"2026-04-15T21:01:32.128Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2017-11-29 18:29:00","lastModifiedDate":"2026-04-15 21:16:58","problem_types":["CWE-190","integer overflow","CWE-190 CWE-190 Integer Overflow or Wraparound"],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"cvssMetricV30":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"HIGH","exploitabilityScore":10,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*","versionStartExcluding":"7.36.0","versionEndIncluding":"7.56.1","matchCriteriaId":"A0B36AFF-B48F-4C92-9E65-5BEE2A988057"},{"vulnerable":true,"criteria":"cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*","versionStartIncluding":"7.36.0","versionEndIncluding":"7.56.1","matchCriteriaId":"116D6861-406B-451F-8CE1-43BFBB818783"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*","matchCriteriaId":"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"},{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","matchCriteriaId":"DEECE5FC-CACF-4496-A3E7-164736409252"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2017","CveId":"8816","Ordinal":"1","Title":"CVE-2017-8816","CVE":"CVE-2017-8816","Year":"2017"},"notes":[{"CveYear":"2017","CveId":"8816","Ordinal":"1","NoteData":"The NTLM authentication feature in curl and libcurl before 7.57.0 on 32-bit platforms allows attackers to cause a denial of service (integer overflow and resultant buffer overflow, and application crash) or possibly have unspecified other impact via vectors involving long user and password fields.","Type":"Description","Title":"CVE-2017-8816"},{"CveYear":"2017","CveId":"8816","Ordinal":"2","NoteData":"2017-11-29","Type":"Other","Title":"Published"},{"CveYear":"2017","CveId":"8816","Ordinal":"3","NoteData":"2018-11-13","Type":"Other","Title":"Modified"}]}}}