Is CVE-2017-0887 in the CISA KEV catalog?

No. CVE-2017-0887 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-0887?

CVE-2017-0887 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2017-0887?

CVE-2017-0887 has an EPSS score of 0.89% (55th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-0887?

Upgrade nextcloud server to 10.0.2 or later.

CVE & CISA-KEV Catalog

CVE-2017-0887

MEDIUM

4.3

CVSS v3

NVD

Description

Nextcloud Server before 9.0.55 and 10.0.2 suffers from a bypass in the quota limitation. Due to not properly sanitizing values provided by the `OC-Total-Length` HTTP header an authenticated adversary may be able to exceed their configured user quota. Thus using more space than allowed by the administrator.

CWE-807 CWE-20Improper Input Validation

How to fix

Remediation Available

nextcloud serverNVD

Affected:>= 10.0.0, < 10.0.2Fixed in:10.0.2CVE-2017-0887derived 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

0.89%probability of exploitation in 30 days

55thpercentile

Moderate risk: more likely to be exploited than 55% 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.