{"cve":{"cve_id":"CVE-2009-0388","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.13334,"epss_percentile":0.95903,"epss_as_of":"2026-06-23","description":"Multiple integer signedness errors in (1) UltraVNC 1.0.2 and 1.0.5 and (2) TightVnc 1.3.9 allow remote VNC servers to cause a denial of service (heap corruption and application crash) or possibly execute arbitrary code via a large length value in a message, related to the (a) ClientConnection::CheckBufferSize and (b) ClientConnection::CheckFileZipBufferSize functions in ClientConnection.cpp.","published_at":"2009-02-04T19:00:00Z","last_modified_at":"2026-06-16T23:04:56.623000Z","cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-189"],"nvd_references":["http://forum.ultravnc.info/viewtopic.php?t=14654","http://vnc-tight.svn.sourceforge.net/viewvc/vnc-tight?view=rev&revision=3564","http://www.vupen.com/english/advisories/2009/0321","http://www.securityfocus.com/bid/33568","http://www.securityfocus.com/archive/1/500632/100/0/threaded","https://www.exploit-db.com/exploits/8024","http://www.coresecurity.com/content/vnc-integer-overflows","http://www.vupen.com/english/advisories/2009/0322","https://www.exploit-db.com/exploits/7990","http://secunia.com/advisories/33807"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:04:54.930370Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"tightvnc","vendor_name":"tightvnc","product_slug":"tightvnc","product_name":"tightvnc","version_start":"1.3.9","version_start_inclusive":true,"version_end":"1.3.9","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:tightvnc:tightvnc:1.3.9:*:*:*:*:*:*:*"},{"vendor_slug":"ultravnc","vendor_name":"ultravnc","product_slug":"ultravnc","product_name":"ultravnc","version_start":"1.0.2","version_start_inclusive":true,"version_end":"1.0.2","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:ultravnc:ultravnc:1.0.2:*:*:*:*:*:*:*"},{"vendor_slug":"ultravnc","vendor_name":"ultravnc","product_slug":"ultravnc","product_name":"ultravnc","version_start":"1.0.5","version_start_inclusive":true,"version_end":"1.0.5","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:ultravnc:ultravnc:1.0.5:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"http://forum.ultravnc.info/viewtopic.php?t=14654","source_type":"MISC","tags":[]},{"url":"http://vnc-tight.svn.sourceforge.net/viewvc/vnc-tight?view=rev&revision=3564","source_type":"MISC","tags":[]},{"url":"http://www.vupen.com/english/advisories/2009/0321","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://www.securityfocus.com/bid/33568","source_type":"MISC","tags":[]},{"url":"http://www.securityfocus.com/archive/1/500632/100/0/threaded","source_type":"MISC","tags":[]},{"url":"https://www.exploit-db.com/exploits/8024","source_type":"EXPLOIT","tags":["exploit"]},{"url":"http://www.coresecurity.com/content/vnc-integer-overflows","source_type":"MISC","tags":[]},{"url":"http://www.vupen.com/english/advisories/2009/0322","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://www.exploit-db.com/exploits/7990","source_type":"EXPLOIT","tags":["exploit"]},{"url":"http://secunia.com/advisories/33807","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2009-02-04T19:00:00Z","label":"CVE published","source":null}]}