CVE-2015-0259

OpenStack Compute (Nova) before 2014.1.4, 2014.2.x before 2014.2.3, and kilo before kilo-3 does not validate the origin of websocket requests, which allows remote attackers to hijack the authentication of users for access to consoles via a crafted webpage.

Published: 2015-04-01 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-0259 is rated Moderate Risk (42.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.07%). Review affected assets and schedule remediation.

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-2015-0259

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 2026-06-15 0.21% 1.07% +0.85%
2 2025-03-30 0.26% 0.21% -0.05%
3 2025-03-29 — 0.26% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-0259

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.1 2.0 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 4.9 6.4 [email protected]

Weakness enumeration for CVE-2015-0259

GitHub Security Advisory for CVE-2015-0259

GHSA-x8xr-rm9r-7mvf · Severity: medium · Ecosystem: pip — OpenStack Compute (Nova) has Insufficient Verification of Data Authenticity

OS Trackers for CVE-2015-0259

vendor priority summary link
debian not yet assigned CVE-2015-0259 not yet assigned priority: Debian including 1 source packages (nova), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2015-0259
redhat high — https://access.redhat.com/security/cve/CVE-2015-0259
ubuntu low CVE-2015-0259 low priority: Ubuntu including 1 source packages (nova), 6 status rows across 6 suites (lucid, precise, trusty, upstream, utopic, vivid): not-affected 3, DNE 2, released 1. https://ubuntu.com/security/CVE-2015-0259

Affected software / configurations for CVE-2015-0259

Vendor Product Version Raw CPE
openstack nova >= 2014.1, < 2014.1.4 cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*
openstack nova >= 2014.2, < 2014.2.3 cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*
openstack nova 2015.1.0 cpe:2.3:a:openstack:nova:2015.1.0:milestone1:*:*:*:*:*:*
openstack nova 2015.1.0 cpe:2.3:a:openstack:nova:2015.1.0:milestone2:*:*:*:*:*:*

References for CVE-2015-0259

cvelogic Threat Intelligence