CVE-2023-39957
7.8 · HIGHOverview
CVE-2023-39957 is a high-severity vulnerability affecting nextcloud talk. It was published on August 10, 2023 and has a CVSS 3.1 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.1 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
Nextcloud Talk Android allows users to place video and audio calls through Nextcloud on Android. Prior to version 17.0.0, an unprotected intend allowed malicious third party apps to trick the Talk Android app into writing files outside of its intended cache directory. Nextcloud Talk Android version 17.0.0 has a patch for this issue. No known workarounds are available.
Remediation
Check the references section for vendor advisories and patches from nextcloud. Update talk 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 |
|---|---|---|---|
| nextcloud | talk | >= 0, < 17.0.0 | Affected |
References
Frequently Asked Questions
What is CVE-2023-39957?
CVE-2023-39957 is a high-severity vulnerability affecting nextcloud talk. It was published on August 10, 2023 and has a CVSS 3.1 base score of 7.8 (HIGH).
How severe is CVE-2023-39957?
This vulnerability has a CVSS 3.1 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-2023-39957?
Check the references section for vendor advisories and patches from nextcloud. Update talk 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-2023-39957?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-39957 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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