CVE-2015-5955

ownCloud iOS app before 3.4.4 does not properly switch state between multiple instances, which might allow remote instance administrators to obtain sensitive credential and cookie information by reading authentication headers.

Published: 2015-10-29 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2015-5955 is rated Low Risk (38.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.30%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-5955

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-04 0.20% 0.30% +0.09%
2 2025-03-30 0.32% 0.20% -0.12%
3 2025-03-29 0.32%

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-5955

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
10.0 2.9 [email protected]

Weakness enumeration for CVE-2015-5955

Affected software / configurations for CVE-2015-5955

Vendor Product Version Raw CPE
owncloud owncloud_client < 3.4.4 cpe:2.3:a:owncloud:owncloud_client:*:*:*:*:*:iphone_os:*:*

References for CVE-2015-5955

URL Tags
https://owncloud.org/security/advisory/?id=oc-sa-2015-013 Broken Link Vendor Advisory
cvelogic Threat Intelligence