{"cve":"CVE-2018-20749","nvd":{"published":"2019-01-30T18:29:00.410","modified":"2026-06-17T01:53:23.850","status":"Modified","description":"LibVNC before 0.9.12 contains a heap out-of-bounds write vulnerability in libvncserver/rfbserver.c. The fix for CVE-2018-15127 was incomplete.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-787"],"references":["http://www.securityfocus.com/bid/106825","https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf","https://github.com/LibVNC/libvncserver/commit/15bb719c03cc70f14c36a843dcb16ed69b405707","https://github.com/LibVNC/libvncserver/issues/273","https://lists.debian.org/debian-lts-announce/2019/01/msg00029.html"],"products":["canonical:ubuntu_linux","debian:debian_linux","libvnc_project:libvncserver","siemens:simatic_itc1500_firmware","siemens:simatic_itc1500_pro_firmware","siemens:simatic_itc1900_firmware","siemens:simatic_itc1900_pro_firmware","siemens:simatic_itc2200_firmware","siemens:simatic_itc2200_pro_firmware"],"source":"nvd","synced_at":"2026-10-19T20:54:46.948512734+00:00"},"epss":{"cve":"CVE-2018-20749","score":0.0323,"percentile":0.88257,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}