CVE-2018-20749

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published
Jan 30, 2019
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2018

CVE-2018-207509.8LibVNC through 0.9.12 contains a heap out-of-bounds write vulnerability in libvncserver/rfbserver.c. The fix for CVE-2018-15127 was incompleCVE-2018-207518.8An issue was discovered in crop_page in PoDoFo 0.9.6. For a crafted PDF document, pPage->GetObject()->GetDictionary().AddKey(PdfName("MediaBCVE-2018-207529.8An issue was discovered in Recon-ng before 4.9.5. Lack of validation in the modules/reporting/csv.py file allows CSV injection. More specifiCVE-2018-207539.8Kaseya VSA RMM before R9.3 9.3.0.35, R9.4 before 9.4.0.36, and R9.5 before 9.5.0.5 allows unprivileged remote attackers to execute PowerShelCVE-2018-207556.1MODX Revolution through v2.7.0-pl allows XSS via the User Photo field.CVE-2018-207566.1MODX Revolution through v2.7.0-pl allows XSS via a document resource (such as pagetitle), which is mishandled during an Update action, a QuiCVE-2018-207576.1MODX Revolution through v2.7.0-pl allows XSS via an extended user field such as Container name or Attribute name.CVE-2018-207585.4MODX Revolution through v2.7.0-pl allows XSS via User Settings such as Description.CVE-2018-207607.8In GPAC 0.7.1 and earlier, gf_text_get_utf8_line in media_tools/text_import.c in libgpac_static.a allows an out-of-bounds write because a ceCVE-2018-207617.8GPAC version 0.7.1 and earlier has a Buffer Overflow vulnerability in the gf_sm_load_init function in scene_manager.c in libgpac_static.a.CVE-2018-207627.8GPAC version 0.7.1 and earlier has a buffer overflow vulnerability in the cat_multiple_files function in applications/mp4box/fileimport.c whCVE-2018-207637.8In GPAC 0.7.1 and earlier, gf_text_get_utf8_line in media_tools/text_import.c in libgpac_static.a allows an out-of-bounds write because of m
CVE-2018-20749: Critical severity, CVSS 9.8 | Vulnix