{"api_version":"1","generated_at":"2026-07-23T12:24:27+00:00","cve":"CVE-2006-1652","urls":{"html":"https://cve.report/CVE-2006-1652","api":"https://cve.report/api/cve/CVE-2006-1652.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2006-1652","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2006-1652"},"summary":{"title":"CVE-2006-1652","description":"Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer 1.29 (1) allow user-assisted remote attackers to execute arbitrary code via a malicious server that sends a long string to a client that connects on TCP port 5900, which triggers an overflow in Log::ReallyPrint; and (2) allow remote attackers to cause a denial of service (server crash) via a long HTTP GET request to TCP port 5800, which triggers an overflow in VNCLog::ReallyPrint.","state":"PUBLISHED","assigner":"mitre","published_at":"2006-04-06 10:04:00","updated_at":"2025-04-03 01:03:51"},"problem_types":["CWE-119","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"9","severity":"","vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:C/I:C/A:C","baseScore":9,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE"}}],"references":[{"url":"http://www.securityfocus.com/bid/17378","name":"http://www.securityfocus.com/bid/17378","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit"],"title":"UltraVNC Multiple Remote Error Logging Buffer Overflow Vulnerabilities","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"http://www.securityfocus.com/archive/1/429930/100/0/threaded","name":"http://www.securityfocus.com/archive/1/429930/100/0/threaded","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"SecurityFocus","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://securityreason.com/securityalert/674","name":"http://securityreason.com/securityalert/674","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"SecurityReason - Buffer-overflow in Ultr@VNC 1.0.1 viewer and server","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securityfocus.com/archive/1/430711/100/0/threaded","name":"http://www.securityfocus.com/archive/1/430711/100/0/threaded","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"SecurityFocus","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.exploit-db.com/exploits/1643","name":"https://www.exploit-db.com/exploits/1643","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Ultr@VNC <= 1.0.1 client Log::ReallyPrint Buffer Overflow PoC","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/25648","name":"https://exchange.xforce.ibmcloud.com/vulnerabilities/25648","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"IBM X-Force Exchange","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2006-April/044901.html","name":"http://lists.grok.org.uk/pipermail/full-disclosure/2006-April/044901.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"[Full-disclosure] Buffer-overflow in Ultr at VNC 1.0.1 viewer and\tserver","mime":"text/html","httpstatus":"404","archivestatus":"200"},{"url":"https://www.exploit-db.com/exploits/1642","name":"https://www.exploit-db.com/exploits/1642","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Ultr@VNC <= 1.0.1 VNCLog::ReallyPrint Remote Buffer Overflow PoC","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securityfocus.com/archive/1/430287/100/0/threaded","name":"http://www.securityfocus.com/archive/1/430287/100/0/threaded","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"SecurityFocus","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://secunia.com/advisories/19513","name":"http://secunia.com/advisories/19513","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"title":"Secunia - Advisories - Ultr@VNC Buffer Overflow Vulnerabilities","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/25650","name":"https://exchange.xforce.ibmcloud.com/vulnerabilities/25650","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"IBM X-Force Exchange","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.vupen.com/english/advisories/2006/1240","name":"http://www.vupen.com/english/advisories/2006/1240","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"title":"Webmail : Solution de messagerie professionnelle - OVHcloud- OVH","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2006-1652","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-1652","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2006","cve_id":"1652","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"ultravnc","cpe5":"tabbed_viewer","cpe6":"1.29","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2006","cve_id":"1652","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"ultravnc","cpe5":"vnc_viewer","cpe6":"1.0.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2006","cve_id":"1652","cve":"CVE-2006-1652","epss":"0.859390000","percentile":"0.993910000","score_date":"2026-04-19","updated_at":"2026-04-20 00:11:20"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-07T17:19:48.989Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"name":"1642","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"],"url":"https://www.exploit-db.com/exploits/1642"},{"name":"untr@vnc-error-bo(25648)","tags":["vdb-entry","x_refsource_XF","x_transferred"],"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/25648"},{"name":"1643","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"],"url":"https://www.exploit-db.com/exploits/1643"},{"name":"ultr@vnc-vnclogreallyprint-bo(25650)","tags":["vdb-entry","x_refsource_XF","x_transferred"],"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/25650"},{"name":"19513","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/19513"},{"name":"20060411 Re: Buffer-overflow in Ultr@VNC 1.0.1 viewer POC","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"],"url":"http://www.securityfocus.com/archive/1/430711/100/0/threaded"},{"name":"20060405 Re: Buffer-overflow in Ultr@VNC 1.0.1 viewer and server","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"],"url":"http://www.securityfocus.com/archive/1/430287/100/0/threaded"},{"name":"ADV-2006-1240","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"],"url":"http://www.vupen.com/english/advisories/2006/1240"},{"name":"674","tags":["third-party-advisory","x_refsource_SREASON","x_transferred"],"url":"http://securityreason.com/securityalert/674"},{"name":"20060404 Buffer-overflow in Ultr@VNC 1.0.1 viewer and server","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"],"url":"http://www.securityfocus.com/archive/1/429930/100/0/threaded"},{"name":"20060404 Buffer-overflow in Ultr@VNC 1.0.1 viewer and server","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"],"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2006-April/044901.html"},{"name":"17378","tags":["vdb-entry","x_refsource_BID","x_transferred"],"url":"http://www.securityfocus.com/bid/17378"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2006-04-04T00:00:00.000Z","descriptions":[{"lang":"en","value":"Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer 1.29 (1) allow user-assisted remote attackers to execute arbitrary code via a malicious server that sends a long string to a client that connects on TCP port 5900, which triggers an overflow in Log::ReallyPrint; and (2) allow remote attackers to cause a denial of service (server crash) via a long HTTP GET request to TCP port 5800, which triggers an overflow in VNCLog::ReallyPrint."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2018-10-18T14:57:01.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"name":"1642","tags":["exploit","x_refsource_EXPLOIT-DB"],"url":"https://www.exploit-db.com/exploits/1642"},{"name":"untr@vnc-error-bo(25648)","tags":["vdb-entry","x_refsource_XF"],"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/25648"},{"name":"1643","tags":["exploit","x_refsource_EXPLOIT-DB"],"url":"https://www.exploit-db.com/exploits/1643"},{"name":"ultr@vnc-vnclogreallyprint-bo(25650)","tags":["vdb-entry","x_refsource_XF"],"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/25650"},{"name":"19513","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/19513"},{"name":"20060411 Re: Buffer-overflow in Ultr@VNC 1.0.1 viewer POC","tags":["mailing-list","x_refsource_BUGTRAQ"],"url":"http://www.securityfocus.com/archive/1/430711/100/0/threaded"},{"name":"20060405 Re: Buffer-overflow in Ultr@VNC 1.0.1 viewer and server","tags":["mailing-list","x_refsource_BUGTRAQ"],"url":"http://www.securityfocus.com/archive/1/430287/100/0/threaded"},{"name":"ADV-2006-1240","tags":["vdb-entry","x_refsource_VUPEN"],"url":"http://www.vupen.com/english/advisories/2006/1240"},{"name":"674","tags":["third-party-advisory","x_refsource_SREASON"],"url":"http://securityreason.com/securityalert/674"},{"name":"20060404 Buffer-overflow in Ultr@VNC 1.0.1 viewer and server","tags":["mailing-list","x_refsource_BUGTRAQ"],"url":"http://www.securityfocus.com/archive/1/429930/100/0/threaded"},{"name":"20060404 Buffer-overflow in Ultr@VNC 1.0.1 viewer and server","tags":["mailing-list","x_refsource_FULLDISC"],"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2006-April/044901.html"},{"name":"17378","tags":["vdb-entry","x_refsource_BID"],"url":"http://www.securityfocus.com/bid/17378"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2006-1652","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":"Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer 1.29 (1) allow user-assisted remote attackers to execute arbitrary code via a malicious server that sends a long string to a client that connects on TCP port 5900, which triggers an overflow in Log::ReallyPrint; and (2) allow remote attackers to cause a denial of service (server crash) via a long HTTP GET request to TCP port 5800, which triggers an overflow in VNCLog::ReallyPrint."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"1642","refsource":"EXPLOIT-DB","url":"https://www.exploit-db.com/exploits/1642"},{"name":"untr@vnc-error-bo(25648)","refsource":"XF","url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/25648"},{"name":"1643","refsource":"EXPLOIT-DB","url":"https://www.exploit-db.com/exploits/1643"},{"name":"ultr@vnc-vnclogreallyprint-bo(25650)","refsource":"XF","url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/25650"},{"name":"19513","refsource":"SECUNIA","url":"http://secunia.com/advisories/19513"},{"name":"20060411 Re: Buffer-overflow in Ultr@VNC 1.0.1 viewer POC","refsource":"BUGTRAQ","url":"http://www.securityfocus.com/archive/1/430711/100/0/threaded"},{"name":"20060405 Re: Buffer-overflow in Ultr@VNC 1.0.1 viewer and server","refsource":"BUGTRAQ","url":"http://www.securityfocus.com/archive/1/430287/100/0/threaded"},{"name":"ADV-2006-1240","refsource":"VUPEN","url":"http://www.vupen.com/english/advisories/2006/1240"},{"name":"674","refsource":"SREASON","url":"http://securityreason.com/securityalert/674"},{"name":"20060404 Buffer-overflow in Ultr@VNC 1.0.1 viewer and server","refsource":"BUGTRAQ","url":"http://www.securityfocus.com/archive/1/429930/100/0/threaded"},{"name":"20060404 Buffer-overflow in Ultr@VNC 1.0.1 viewer and server","refsource":"FULLDISC","url":"http://lists.grok.org.uk/pipermail/full-disclosure/2006-April/044901.html"},{"name":"17378","refsource":"BID","url":"http://www.securityfocus.com/bid/17378"}]}}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2006-1652","datePublished":"2006-04-06T10:00:00.000Z","dateReserved":"2006-04-06T00:00:00.000Z","dateUpdated":"2024-08-07T17:19:48.989Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2006-04-06 10:04:00","lastModifiedDate":"2025-04-03 01:03:51","problem_types":["CWE-119","n/a"],"metrics":{"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:C/I:C/A:C","baseScore":9,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE"},"baseSeverity":"HIGH","exploitabilityScore":8,"impactScore":10,"acInsufInfo":false,"obtainAllPrivilege":true,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:ultravnc:tabbed_viewer:1.29:*:*:*:*:*:*:*","matchCriteriaId":"3A88AF12-6226-469C-BA57-AFB5CBE1A563"},{"vulnerable":true,"criteria":"cpe:2.3:a:ultravnc:vnc_viewer:1.0.1:*:*:*:*:*:*:*","matchCriteriaId":"5176614B-7653-49B8-A83A-99A22D3EDF5A"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2006","CveId":"1652","Ordinal":"1","Title":"CVE-2006-1652","CVE":"CVE-2006-1652","Year":"2006"},"notes":[{"CveYear":"2006","CveId":"1652","Ordinal":"1","NoteData":"Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer 1.29 (1) allow user-assisted remote attackers to execute arbitrary code via a malicious server that sends a long string to a client that connects on TCP port 5900, which triggers an overflow in Log::ReallyPrint; and (2) allow remote attackers to cause a denial of service (server crash) via a long HTTP GET request to TCP port 5800, which triggers an overflow in VNCLog::ReallyPrint.","Type":"Description","Title":"CVE-2006-1652"},{"CveYear":"2006","CveId":"1652","Ordinal":"2","NoteData":"2006-04-06","Type":"Other","Title":"Published"},{"CveYear":"2006","CveId":"1652","Ordinal":"3","NoteData":"2018-10-18","Type":"Other","Title":"Modified"}]}}}