{"id":"CVE-2019-8260","aliases":["EUVD-2019-17658","GHSA-vm9w-77x5-h7q8"],"status":"published","title":"UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC client RRE decoder code,...","description":"UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC client RRE decoder code, caused by multiplication overflow. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1200.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02253,"percentile":0.83043,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2019-03-05T15:00:00Z","modified":"2026-06-17T02:41:46Z","products":[{"vendor":"ultravnc","product":"ultravnc"},{"vendor":"uvnc","product":"ultravnc"}],"references":[{"url":"https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-006-ultravnc-out-of-bound-read/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://www.us-cert.gov/ics/advisories/icsa-20-161-06","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-8260"},{"url":"https://github.com/advisories/GHSA-vm9w-77x5-h7q8"}],"sources":{"cve":[{"id":"CVE-2019-8260","description":"UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC client RRE decoder code, caused by multiplication overflow. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1200.","status":"published","published":"2019-03-05T15:00:00Z","modified":"2024-09-16T20:22:40.235Z","cwes":["CWE-125"],"updated_at":"2026-11-02T14:20:22.019351Z"}],"euvd":[{"id":"EUVD-2019-17658","description":"UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC client RRE decoder code, caused by multiplication overflow. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1200.","status":"published","published":"2019-03-05T15:00:00Z","modified":"2024-09-16T20:22:40Z","updated_at":"2026-11-03T00:55:14.527578Z"}],"ghsa":[{"id":"GHSA-vm9w-77x5-h7q8","title":"UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC client RRE decoder code,...","description":"UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC client RRE decoder code, caused by multiplication overflow. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1200.","status":"published","published":"2022-05-13T01:09:06Z","modified":"2023-02-01T05:03:16Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:50:02.739665Z"}],"nvd":[{"id":"CVE-2019-8260","description":"UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC client RRE decoder code, caused by multiplication overflow. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1200.","status":"published","published":"2019-03-05T15:29:00.397Z","modified":"2026-06-17T02:41:46.05Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:05:07.268578Z"}]}}