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Fencer Intel
low 2.1

CVE-2015-2045 json

The HYPERVISOR_xen_version hypercall in Xen 3.2.x through 4.5.x does not properly initialize data structures, which allows local guest user…

published 2015-03-12 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-2158

cvss
2.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

The HYPERVISOR_xen_version hypercall in Xen 3.2.x through 4.5.x does not properly initialize data structures, which allows local guest users to obtain sensitive information via unspecified vectors.

Patch / fix

  • xen Debian 14, Debian 13, Debian 12 4.4.1-8

debian advisories DEBIAN-CVE-2015-2045

  • xen Ubuntu 14.04 LTS 4.4.1-0ubuntu0.14.04.4

ubuntu advisories UBUNTU-CVE-2015-2045

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • xen SLES for SAP 12, SLES 12, SLED 12 +1 more 4.4.1_10-9.1

suse advisories SUSE-SU-2015:0613-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-2045 updated cvss 2.9

xen: information leak via version information hypercall (XSA-122)

  • Red Hat Enterprise Linux 5 xen
    affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.