How severe is CVE-2019-14935?

CVE-2019-14935 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-2019-14935 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-14935?

CVE-2019-14935 affects 3cx. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-14935?

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-2019-14935 published?

CVE-2019-14935 was published on 2019-08-12 and last updated on 2026-06-17.

CVE-2019-14935

CVE-2019-14935 is a high-severity vulnerability in 3cx 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: 3cx
Published: 2019-08-12
Last modified: 2026-06-17

Description

3CX Phone 15 on Windows has insecure permissions on the "%PROGRAMDATA%\3CXPhone for Windows\PhoneApp" installation directory, allowing Full Control access for Everyone, and leading to privilege escalation because of a StartUp link.

Frequently asked questions

What is CVE-2019-14935?: 3CX Phone 15 on Windows has insecure permissions on the "%PROGRAMDATA%\3CXPhone for Windows\PhoneApp" installation directory, allowing Full Control access for Everyone, and leading to privilege escalation because of a StartUp link.
How severe is CVE-2019-14935?: CVE-2019-14935 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-2019-14935 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-14935?: CVE-2019-14935 affects 3cx. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-14935?: 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-2019-14935 published?: CVE-2019-14935 was published on 2019-08-12 and last updated on 2026-06-17.

References

https://www.3cx.com/community/threads/security-issue-with-3cx-windows-client-install.64432/

Affected products (1)

cpe:2.3:a:3cx:3cx:15:*:*:*:*:*:*:*

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