{"api_version":"1","generated_at":"2026-07-23T11:12:22+00:00","cve":"CVE-2009-5140","urls":{"html":"https://cve.report/CVE-2009-5140","api":"https://cve.report/api/cve/CVE-2009-5140.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2009-5140","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2009-5140"},"summary":{"title":"CVE-2009-5140","description":"The SIP implementation on the Linksys SPA2102 phone adapter provides hashed credentials in a response to an invalid authentication challenge, which makes it easier for remote attackers to obtain access via a brute-force attack, related to a \"SIP Digest Leak\" issue.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2020-02-12 14:15:00","updated_at":"2020-02-14 19:35:00"},"problem_types":["CWE-307"],"metrics":[],"references":[{"url":"http://voipsa.org/pipermail/voipsec_voipsa.org/2009-April/002946.html","name":"http://voipsa.org/pipermail/voipsec_voipsa.org/2009-April/002946.html","refsource":"MISC","tags":["Mailing List","Third Party Advisory"],"title":"[VOIPSEC] Any solution to the SIP Digest Leakage vulnerability?","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://resources.enablesecurity.com/resources/sipdigestleak-tut.pdf","name":"https://resources.enablesecurity.com/resources/sipdigestleak-tut.pdf","refsource":"MISC","tags":["Mailing List","Third Party Advisory"],"title":"","mime":"application/pdf","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2009-5140","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-5140","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2009","cve_id":"5140","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"linksys","cpe5":"spa2102","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2009","cve_id":"5140","vulnerable":"0","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"linksys","cpe5":"spa2102","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2009","cve_id":"5140","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linksys","cpe5":"spa2102_firmware","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2009","cve_id":"5140","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linksys","cpe5":"spa2102_firmware","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2009-5140","STATE":"PUBLIC"},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"The SIP implementation on the Linksys SPA2102 phone adapter provides hashed credentials in a response to an invalid authentication challenge, which makes it easier for remote attackers to obtain access via a brute-force attack, related to a \"SIP Digest Leak\" issue."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"references":{"reference_data":[{"refsource":"MISC","name":"https://resources.enablesecurity.com/resources/sipdigestleak-tut.pdf","url":"https://resources.enablesecurity.com/resources/sipdigestleak-tut.pdf"},{"refsource":"MISC","name":"http://voipsa.org/pipermail/voipsec_voipsa.org/2009-April/002946.html","url":"http://voipsa.org/pipermail/voipsec_voipsa.org/2009-April/002946.html"}]}},"nvd":{"publishedDate":"2020-02-12 14:15:00","lastModifiedDate":"2020-02-14 19:35:00","problem_types":["CWE-307"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:N/A:N","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":4.3},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:linksys:spa2102_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:linksys:spa2102:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]}]}},"legacy_mitre":{"record":{"CveYear":"2009","CveId":"5140","Ordinal":"69413","Title":"CVE-2009-5140","CVE":"CVE-2009-5140","Year":"2009"},"notes":[{"CveYear":"2009","CveId":"5140","Ordinal":"1","NoteData":"The SIP implementation on the Linksys SPA2102 phone adapter provides hashed credentials in a response to an invalid authentication challenge, which makes it easier for remote attackers to obtain access via a brute-force attack, related to a \"SIP Digest Leak\" issue.","Type":"Description","Title":null},{"CveYear":"2009","CveId":"5140","Ordinal":"2","NoteData":"2020-02-12","Type":"Other","Title":"Published"},{"CveYear":"2009","CveId":"5140","Ordinal":"3","NoteData":"2020-02-12","Type":"Other","Title":"Modified"}]}}}