CVE-2019-11644
7.8 · HIGHOverview
CVE-2019-11644 is a high-severity vulnerability affecting f-secure client_security. It was published on May 17, 2019 and has a CVSS 3.0 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.0 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
In the F-Secure installer in F-Secure SAFE for Windows before 17.6, F-Secure Internet Security before 17.6, F-Secure Anti-Virus before 17.6, F-Secure Client Security Standard and Premium before 14.10, F-Secure PSB Workstation Security before 12.01, and F-Secure Computer Protection Standard and Premium before 19.3, a local user can escalate their privileges through a DLL hijacking attack against the installer. The installer writes the file rm.exe to C:\Windows\Temp and then executes it. The rm.exe process then attempts to load several DLLs from its current directory. Non-admin users are able to write to this folder, so an attacker can create a malicious C:\Windows\Temp\OLEACC.dll file. When an admin runs the installer, rm.exe will execute the attacker's DLL in an elevated security context.
Remediation
Check the references section for vendor advisories and patches from f-secure. Update client_security to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| f-secure | client_security | >= 0, < 14.10 | Affected |
| f-secure | computer_protection | >= 0, < 19.3 | Affected |
| f-secure | internet_security | >= 0, < 17.6 | Affected |
| f-secure | psb_workstation_security | >= 0, < 12.01 | Affected |
| f-secure | safe | >= 0, < 17.6 | Affected |
Frequently Asked Questions
What is CVE-2019-11644?
CVE-2019-11644 is a high-severity vulnerability affecting f-secure client_security. It was published on May 17, 2019 and has a CVSS 3.0 base score of 7.8 (HIGH).
How severe is CVE-2019-11644?
This vulnerability has a CVSS 3.0 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2019-11644?
Check the references section for vendor advisories and patches from f-secure. Update client_security to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-11644?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-11644 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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