How severe is CVE-2017-15357?

CVE-2017-15357 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-15357 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-15357?

CVE-2017-15357 affects Arqbackup Arq. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-15357?

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-2017-15357 published?

CVE-2017-15357 was published on 2017-12-01 and last updated on 2026-06-17.

CVE-2017-15357

CVE-2017-15357 is a high-severity vulnerability in Arqbackup Arq with a CVSS 3.x base score of 7.4. 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-59.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 6.9
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-59
Affected product: Arqbackup Arq
Published: 2017-12-01
Last modified: 2026-06-17

Description

The setpermissions function in the auto-updater in Arq before 5.9.7 for Mac allows local users to gain root privileges via a symlink attack on the updater binary itself.

Frequently asked questions

What is CVE-2017-15357?: The setpermissions function in the auto-updater in Arq before 5.9.7 for Mac allows local users to gain root privileges via a symlink attack on the updater binary itself.
How severe is CVE-2017-15357?: CVE-2017-15357 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-15357 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-15357?: CVE-2017-15357 affects Arqbackup Arq. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-15357?: 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-2017-15357 published?: CVE-2017-15357 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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