CVE-2019-20840

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CVSS 3.1

7.5 high

EPSS

3%p85

Published

Jun 17, 2020 (Jun 17, 2020)

Modified

Jun 17, 2026

Description

An issue was discovered in LibVNCServer before 0.9.13. libvncserver/ws_decode.c can lead to a crash because of unaligned accesses in hybiReadAndDecode.

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

NVD CVE.org GitHub PoCs EPSS (2.6%)

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