Is CVE-2015-0259 in the CISA KEV catalog?

No. CVE-2015-0259 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-0259?

CVE-2015-0259 has a CVSS v2 base score of 5.1 (MEDIUM).

What is the EPSS score for CVE-2015-0259?

CVE-2015-0259 has an EPSS score of 1.07% (61th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-0259?

Upgrade nova on debian 11 to 2014.1.3-11 or later.

CVE & CISA-KEV Catalog

CVE-2015-0259

MEDIUM

5.1

CVSS v2

NVD

Description

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.

CWE-345

How to fix

Remediation Available

novaDebian

Fixed in:2014.1.3-11CVE-2015-0259

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

1.07%probability of exploitation in 30 days

61stpercentile

Moderate risk: more likely to be exploited than 61% of all known CVEs.

References

Vendor Advisory1

lists.openstack.org

Third-Party Advisory4

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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 2026-05-06.