What’s Vulnerable › Vulnerabilities

CVE-2019-18215

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-11-18 · updated 2026-06-17
• Weakness: CWE-427

Description

An issue was discovered in signmgr.dll 6.5.0.819 in Comodo Internet Security through 12.0. A DLL Preloading vulnerability allows an attacker to implant an unsigned DLL named iLog.dll in a partially unprotected product directory. This DLL is then loaded into a high-privileged service before the binary signature validation logic is loaded, and might bypass some of the self-defense mechanisms.

Affected products

• Comodo Internet Security: before 12.1.0.6914 — fixed in 12.1.0.6914

How to fix

Upgrade to a fixed version: Comodo Internet Security 12.1.0.6914. Check the vendor advisory for mitigations.

References

• https://forums.comodo.com/news-announcements-feedback-cis/comodo-internet-security-2019-v12106914-released-t124993.0.html
• https://safebreach.com/Post/Comodo-Internet-Security-DLL-Preloading-and-Potential-Abuses-CVE-2019-18215
• https://safebreach.com/blog
• https://forums.comodo.com/news-announcements-feedback-cis/comodo-internet-security-2019-v12106914-released-t124993.0.html
• https://safebreach.com/Post/Comodo-Internet-Security-DLL-Preloading-and-Potential-Abuses-CVE-2019-18215
• https://safebreach.com/blog

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