Is CVE-2017-0884 in the CISA KEV catalog?

No. CVE-2017-0884 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-0884?

CVE-2017-0884 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2017-0884?

CVE-2017-0884 has an EPSS score of 0.67% (47th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-0884?

Upgrade nextcloud server to 10.0.2 or later.

CVE & CISA-KEV Catalog

CVE-2017-0884

MEDIUM

4.3

CVSS v3

NVD

Description

Nextcloud Server before 9.0.55 and 10.0.2 suffers from a creation of folders in read-only folders despite lacking permissions issue. Due to a logical error in the file caching layer an authenticated adversary is able to create empty folders inside a shared folder. Note that this only affects folders and files that the adversary has at least read-only permissions for.

CWE-275 CWE-732Incorrect Permission Assignment for Critical Resource

How to fix

Remediation Available

nextcloud serverNVD

Affected:>= 10.0.0, < 10.0.2Fixed in:10.0.2CVE-2017-0884derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Exploit Intelligence

0.67%probability of exploitation in 30 days

47thpercentile

Moderate risk: more likely to be exploited than 47% of all known CVEs.

References

Patch1

nextcloud.com

Third-Party Advisory1

hackerone.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.