{"id":"CVE-2009-0388","aliases":["EUVD-2009-0392","GHSA-j23w-r722-rm78"],"status":"published","title":"Multiple integer signedness errors in (1) UltraVNC 1.0.2 and 1.0.5 and (2) TightVnc 1.3.9 allow...","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.","severity":{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.13334,"percentile":0.9643,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-189"],"published":"2009-02-04T19:00:00Z","modified":"2026-06-16T23:04:56Z","exploits":[{"source":"exploitdb","id":"EDB-7990","title":"UltraVNC/TightVNC (Multiple VNC Clients) - Multiple Integer Overflows (PoC)","type":"dos","platform":"windows","date":"2009-02-04","verified":true,"url":"https://www.exploit-db.com/exploits/7990"},{"source":"exploitdb","id":"EDB-8024","title":"TightVNC - Authentication Failure Integer Overflow (PoC)","type":"dos","platform":"windows","date":"2009-02-09","verified":true,"url":"https://www.exploit-db.com/exploits/8024"}],"products":[{"vendor":"tightvnc","product":"tightvnc"},{"vendor":"ultravnc","product":"ultravnc"}],"references":[{"url":"http://forum.ultravnc.info/viewtopic.php?t=14654","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://vnc-tight.svn.sourceforge.net/viewvc/vnc-tight?view=rev\u0026revision=3564","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2009/0321","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"http://www.securityfocus.com/bid/33568","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit","Patch"]},{"url":"http://www.securityfocus.com/archive/1/500632/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://www.exploit-db.com/exploits/8024","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"url":"http://www.coresecurity.com/content/vnc-integer-overflows","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"http://www.vupen.com/english/advisories/2009/0322","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"https://www.exploit-db.com/exploits/7990","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"url":"http://secunia.com/advisories/33807","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-0388"},{"url":"https://github.com/advisories/GHSA-j23w-r722-rm78"}],"sources":{"cve":[{"id":"CVE-2009-0388","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.","status":"published","published":"2009-02-04T19:00:00Z","modified":"2024-08-07T04:31:25.854Z","updated_at":"2026-11-02T14:33:25.896677Z"}],"euvd":[{"id":"EUVD-2009-0392","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.","status":"published","published":"2009-02-04T19:00:00Z","modified":"2024-08-07T04:31:25Z","updated_at":"2026-11-03T01:39:26.059387Z"}],"ghsa":[{"id":"GHSA-j23w-r722-rm78","title":"Multiple integer signedness errors in (1) UltraVNC 1.0.2 and 1.0.5 and (2) TightVnc 1.3.9 allow...","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.","status":"published","published":"2022-05-02T03:15:05Z","modified":"2023-01-31T05:07:52Z","updated_at":"2026-11-02T14:49:17.497915Z"}],"nvd":[{"id":"CVE-2009-0388","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.","status":"published","published":"2009-02-04T19:30:00.53Z","modified":"2026-06-16T23:04:56.623Z","cvss":[{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-189"],"updated_at":"2026-11-02T14:01:33.417327Z"}]}}