SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-0885

Nextcloud Server before 9.0.55 and 10.0.2 suffers from a error message disclosing existence of file in write-only share.

MEDIUM 4.3EPSS 0.90%

Does this matter?

Lower severity and a low EPSS score (0.90%). Track it; it rarely justifies an emergency change on its own.

Description

Nextcloud Server before 9.0.55 and 10.0.2 suffers from a error message disclosing existence of file in write-only share. Due to an error in the application logic an adversary with access to a write-only share may enumerate the names of existing files and subfolders by comparing the exception messages.

CVSS 3.1
4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS
0.90% probability · 59th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-209, CWE-200
Affected
nextcloud/nextcloud server
Source
support@hackerone.com
EPSS trend
0%3%5%27 October 2026: 0.90%27 October 202627 October 2026

EPSS 0.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.