CVE-2019-19820

HIGH

Kyrol Internet Security - Privilege Escalation

Title source: rule

Description

An invalid pointer vulnerability in IOCTL Handling in the kyrld.sys driver in Kyrol Internet Security 9.0.6.9 allows an attacker to achieve privilege escalation, denial-of-service, and code execution via usermode because 0x9C402405 using METHOD_NEITHER results in a read primitive.

References (2)

[Exploit, Third Party Advisory] https://nafiez.github.io/security/vulnerability/2019/12/04/kyrol-internet-security-invalid-pointer-vulnerability.html

[Exploit, Third Party Advisory] https://github.com/nafiez/nafiez.github.io/blob/master/_posts/2019-12-04-kyrol-internet-security-invalid-pointer-vulnerability.md

Scores

CVSS v3 7.8

EPSS 0.0019

EPSS Percentile 40.1%

Attack Vector LOCAL

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

Details

CWE

CWE-763

Status published

Products (1)

kyrol/internet_security 9.0.6.9

Published Jan 10, 2020

Tracked Since Feb 18, 2026