How severe is CVE-2017-5865?

CVE-2017-5865 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2017-5865 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-5865?

CVE-2017-5865 primarily affects Owncloud. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-5865?

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

When was CVE-2017-5865 published?

CVE-2017-5865 was published on 2017-03-03 and last updated on 2026-06-17.

CVE-2017-5865

CVE-2017-5865 is a low-severity vulnerability in Owncloud with a CVSS 3.x base score of 3.7. 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-200.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
CVSS v2: 4.3
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Owncloud
Published: 2017-03-03
Last modified: 2026-06-17

Description

The password reset functionality in ownCloud Server before 8.1.11, 8.2.x before 8.2.9, 9.0.x before 9.0.7, and 9.1.x before 9.1.3 sends different error messages depending on whether the username is valid, which allows remote attackers to enumerate user names via a large number of password reset attempts.

Frequently asked questions

What is CVE-2017-5865?: The password reset functionality in ownCloud Server before 8.1.11, 8.2.x before 8.2.9, 9.0.x before 9.0.7, and 9.1.x before 9.1.3 sends different error messages depending on whether the username is valid, which allows remote attackers to enumerate user names via a large number of password reset attempts.
How severe is CVE-2017-5865?: CVE-2017-5865 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2017-5865 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-5865?: CVE-2017-5865 primarily affects Owncloud. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-5865?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-5865 published?: CVE-2017-5865 was published on 2017-03-03 and last updated on 2026-06-17.

References

Affected products (18)

cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:8.2.2:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:8.2.3:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:8.2.4:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:8.2.5:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:8.2.6:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:8.2.7:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:8.2.8:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:9.0.0:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:9.0.1:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:9.0.2:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:9.0.3:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:9.0.4:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:9.0.5:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:9.0.6:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:9.1.0:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:9.1.1:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud:9.1.2:*:*:*:*:*:*:*

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