Cyber Resilience

CVE-2024-42052

Splashtop Streamer ≤ 3.5.8.0

Published
28 July 2024
Modified
20 March 2025
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0021 12th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2024-42052 is a high-severity Creation of Temporary File With Insecure Permissions (CWE-378) vulnerability in Splashtop Streamer. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Data from Local System (T1005); ranked at the 12th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-6 (Least Privilege) and SC-4 (Information in Shared System Resources) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

The MSI installer for Splashtop Streamer for Windows before 3.5.8.0 uses a temporary folder with weak permissions during installation. A local user can exploit this to escalate privileges to SYSTEM by placing a wevtutil.exe file in the folder.

CWE(s)
NVD-CWE-OtherCWE-378

Related Threats

MITRE ATT&CK Enterprise Techniques

T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
attack.mitre.org →
T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1552 Unsecured Credentials Credential Access
Adversaries may search compromised systems to find and obtain insecurely stored credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-42050Same product: Splashtop Streamer
CVE-2024-42053Same product: Splashtop Streamer
CVE-2024-42051Same product: Splashtop Streamer
CVE-2024-23454Shared CWE-378
CVE-2024-47884Shared CWE-378
CVE-2025-55629Shared CWE-378
CVE-2024-7358Shared CWE-378
CVE-2025-4953Shared CWE-378
CVE-2025-38747Shared CWE-378
CVE-2023-27408Shared CWE-378

Affected Assets

splashtop
streamer
≤ 3.5.8.0

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

AC-6 Least Privilege good match

AC-6 limits privileges granted to processes creating or accessing temporary files, reducing blast radius of insecure permissions.

SC-4 Information in Shared System Resources good match

SC-4 directly stops unauthorized information transfer through shared resources such as temporary files created with weak permissions.

AC-3 Access Enforcement partial match

AC-3 enforces access authorizations on system resources including files, structurally stopping insecure temporary file permissions from being exploitable.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require proper temporary-file creation and permission handling.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.28 Secure coding mostly match
prevents

Secure coding standards directly prohibit insecure temporary file creation and permissions.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect insecure temporary files but does not prevent their creation.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC mandates secure handling of temporary files and permissions.

A.8.26 Application security requirements partial match
prevents

Application security requirements include secure creation and permissioning of temporary files.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles require least-privilege file creation and access controls.

A.8.3 Information access restriction partial match
prevents

Information access restriction can limit exposure but does not address file creation itself.

References