What’s Vulnerable › Vulnerabilities

CVE-2019-19820

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-01-10 · updated 2026-06-17
• Weakness: CWE-763

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.

Affected products

• Kyrol Internet Security: 9.0.6.9

References

• https://github.com/nafiez/nafiez.github.io/blob/master/_posts/2019-12-04-kyrol-internet-security-invalid-pointer-vulnerability.md
• https://nafiez.github.io/security/vulnerability/2019/12/04/kyrol-internet-security-invalid-pointer-vulnerability.html
• https://github.com/nafiez/nafiez.github.io/blob/master/_posts/2019-12-04-kyrol-internet-security-invalid-pointer-vulnerability.md
• https://nafiez.github.io/security/vulnerability/2019/12/04/kyrol-internet-security-invalid-pointer-vulnerability.html

Get alerted when CVE-2019-19820 or the next vulnerability affects your stack