Cyber Resilience

CVE-2023-39957

High

Published: 10 August 2023

Published
10 August 2023
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0048 65.5th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-39957 is a high-severity Path Traversal (CWE-22) vulnerability in Nextcloud Talk. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 34.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

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cache directory. Nextcloud Talk Android version 17.0.0 has a patch for this issue. No known workarounds are available.

CWE(s)
CWE-22

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

nextcloud
talk
17.0.0 · ≤ 17.0.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-10 Information Input Validation
addresses: CWE-22

Validates pathnames and filenames to prevent traversal outside intended directories.

References