CVE-2019-17191
7.5 · HIGHOverview
CVE-2019-17191 is a high-severity vulnerability affecting signal private_messenger. It was published on October 5, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
The Signal Private Messenger application before 4.47.7 for Android allows a caller to force a call to be answered, without callee user interaction, via a connect message. The existence of the call is noticeable to the callee; however, the audio channel may be open before the callee can block eavesdropping.
Remediation
Check the references section for vendor advisories and patches from signal. Update private_messenger 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 |
|---|---|---|---|
| signal | private_messenger | >= 0, < 4.47.7 | Affected |
References
Frequently Asked Questions
What is CVE-2019-17191?
CVE-2019-17191 is a high-severity vulnerability affecting signal private_messenger. It was published on October 5, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2019-17191?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2019-17191?
Check the references section for vendor advisories and patches from signal. Update private_messenger 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-2019-17191?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-17191 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.
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