How severe is CVE-2017-7643?

CVE-2017-7643 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-2017-7643 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-7643?

CVE-2017-7643 affects Proxifier. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-7643?

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-2017-7643 published?

CVE-2017-7643 was published on 2017-04-14 and last updated on 2026-06-17.

CVE-2017-7643

CVE-2017-7643 is a high-severity vulnerability in Proxifier 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.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Proxifier
Published: 2017-04-14
Last modified: 2026-06-17

Description

Proxifier for Mac before 2.19 allows local users to gain privileges via the first parameter to the KLoader setuid program.

Frequently asked questions

What is CVE-2017-7643?: Proxifier for Mac before 2.19 allows local users to gain privileges via the first parameter to the KLoader setuid program.
How severe is CVE-2017-7643?: CVE-2017-7643 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-2017-7643 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-7643?: CVE-2017-7643 affects Proxifier. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-7643?: 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-2017-7643 published?: CVE-2017-7643 was published on 2017-04-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:proxifier:proxifier:*:*:*:*:*:macos:*:*

More vulnerabilities in Proxifier

CVE-2017-7690 — High (CVSS 7.8): Proxifier for Mac before 2.19.2, when first run, allows local users to gain privileges by replacing the KLoader binary…

All CVEs affecting Proxifier →