How severe is CVE-2017-16773?

CVE-2017-16773 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2017-16773 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-16773?

CVE-2017-16773 affects Synology Universal Search. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-16773?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-16773 published?

CVE-2017-16773 was published on 2018-07-05 and last updated on 2026-06-17.

CVE-2017-16773

CVE-2017-16773 is a medium-severity vulnerability in Synology Universal Search with a CVSS 3.x base score of 6.5. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.5
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Synology Universal Search
Published: 2018-07-05
Last modified: 2026-06-17

Description

Improper authorization vulnerability in Highlight Preview in Synology Universal Search before 1.0.5-0135 allows remote authenticated users to bypass permission checks for directories in POSIX mode.

Frequently asked questions

What is CVE-2017-16773?: Improper authorization vulnerability in Highlight Preview in Synology Universal Search before 1.0.5-0135 allows remote authenticated users to bypass permission checks for directories in POSIX mode.
How severe is CVE-2017-16773?: CVE-2017-16773 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2017-16773 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-16773?: CVE-2017-16773 affects Synology Universal Search. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-16773?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-16773 published?: CVE-2017-16773 was published on 2018-07-05 and last updated on 2026-06-17.

References

https://www.synology.com/en-global/support/security/Synology_SA_18_27

Affected products (1)

cpe:2.3:a:synology:universal_search:*:*:*:*:*:*:*:*

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