How severe is CVE-2021-42712?

CVE-2021-42712 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-42712 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-42712?

CVE-2021-42712 affects Splashtop Streamer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-42712?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-42712 published?

CVE-2021-42712 was published on 2022-02-15 and last updated on 2026-06-17.

CVE-2021-42712

CVE-2021-42712 is a high-severity vulnerability in Splashtop Streamer with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-668.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-668
Affected product: Splashtop Streamer
Published: 2022-02-15
Last modified: 2026-06-17

Description

Splashtop Streamer through 3.4.8.3 creates a Temporary File in a Directory with Insecure Permissions.

Frequently asked questions

What is CVE-2021-42712?: Splashtop Streamer through 3.4.8.3 creates a Temporary File in a Directory with Insecure Permissions.
How severe is CVE-2021-42712?: CVE-2021-42712 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-42712 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-42712?: CVE-2021-42712 affects Splashtop Streamer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-42712?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-42712 published?: CVE-2021-42712 was published on 2022-02-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:splashtop:streamer:*:*:*:*:*:windows:*:*

More vulnerabilities in Splashtop Streamer

CVE-2024-42053 — High (CVSS 7.8): The MSI installer for Splashtop Streamer for Windows before 3.6.0.0 uses a temporary folder with weak permissions…
CVE-2024-42052 — High (CVSS 7.8): The MSI installer for Splashtop Streamer for Windows before 3.5.8.0 uses a temporary folder with weak permissions…
CVE-2024-42051 — High (CVSS 7.8): The MSI installer for Splashtop Streamer for Windows before 3.6.2.0 uses a temporary folder with weak permissions…
CVE-2023-3181 — High (CVSS 7.8): The C:\Program Files (x86)\Splashtop\Splashtop Software Updater\uninst.exe process creates a folder at…
CVE-2024-42050 — High (CVSS 7.0): The MSI installer for Splashtop Streamer for Windows before 3.7.0.0 uses a temporary folder with weak permissions…
CVE-2020-12431 — Medium (CVSS 6.6): A Windows privilege change issue was discovered in Splashtop Software Updater before 1.5.6.16. Insecure permissions on…

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