PT-2019-1817 · Microsoft · Windows

Published 2019-04-09 · Updated 2025-04-10 · CVE-2019-0859

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Windows (affected versions not specified)

Description The issue is related to a component of the Windows operating system, specifically the Win32k component, which has insufficient access restrictions. This can be exploited by an attacker to execute arbitrary code in kernel mode using a specially crafted application. The vulnerability has been used in real-world attacks to deploy a PowerShell backdoor. Researchers have identified that the exploit was used by various APT groups, including Fancy Bear, Turla, FIN8, and Buhtrap. The estimated number of potentially affected devices worldwide is not specified.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-264

Related Identifiers

BDU:2019-01469

CVE-2019-0859

Affected Products

Windows

References · 17

• 🔥 https://github.com/Sheisback/CVE-2019-0859-1day-Exploit · Exploit
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0859 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0859 · Security Note
• https://bdu.fstec.ru/vul/2019-01469 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-0859 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2019-0859 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-0859 · Vendor Advisory
• https://cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0859 · Note
• https://t.me/defcon_news/11219 · Telegram Post
• https://t.me/hnews/25483 · Telegram Post
• https://cisa.gov/known-exploited-vulnerabilities-catalog · Note
• https://t.me/true_secator/1008 · Telegram Post
• https://t.me/defcon_news/11498 · Telegram Post
• https://t.me/cvenotify/46520 · Telegram Post
• https://t.me/ckure/1814 · Telegram Post