CVE-2018-20748

PoC —

CVSS 3.1

9.8 critical

EPSS

3%p88

Published

Jan 30, 2019 (Jan 30, 2019)

Modified

Jun 17, 2026

Description

LibVNC before 0.9.12 contains multiple heap out-of-bounds write vulnerabilities in libvncclient/rfbproto.c. The fix for CVE-2018-20019 was incomplete.

Vendors: libvnc project debian canonical siemens
Products: libvncserver, debian linux, ubuntu linux, simatic itc1500 firmware, simatic itc1500 pro firmware, simatic itc1900 firmware, simatic itc1900 pro firmware, simatic itc2200 firmware, simatic itc2200 pro firmware
Weakness: CWE-787
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (3.3%)

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