How severe is CVE-2017-16895?

CVE-2017-16895 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-2017-16895 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-16895?

CVE-2017-16895 affects Arqbackup Arq. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-16895?

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-2017-16895 published?

CVE-2017-16895 was published on 2017-12-01 and last updated on 2026-06-17.

CVE-2017-16895

CVE-2017-16895 is a high-severity vulnerability in Arqbackup Arq 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: 7.2
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Arqbackup Arq
Published: 2017-12-01
Last modified: 2026-06-17

Description

The (1) arq_updater, (2) arqcommitter, (3) standardrestorer, (4) arqglacierrestorer, and (5) arqs3glacierrestorer helper apps in Arq 5.x before 5.10 for Mac allow local users to gain root privileges via a crafted data packet.

Frequently asked questions

What is CVE-2017-16895?: The (1) arq_updater, (2) arqcommitter, (3) standardrestorer, (4) arqglacierrestorer, and (5) arqs3glacierrestorer helper apps in Arq 5.x before 5.10 for Mac allow local users to gain root privileges via a crafted data packet.
How severe is CVE-2017-16895?: CVE-2017-16895 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-2017-16895 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-16895?: CVE-2017-16895 affects Arqbackup Arq. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-16895?: 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-2017-16895 published?: CVE-2017-16895 was published on 2017-12-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:arqbackup:arq:*:*:*:*:*:macos:*:*

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