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CVE-2015-2045

11
FAUCET Score

CVE-2015-2045 describes an information disclosure vulnerability in Xen versions 3.2.x through 4.5.x, affecting various Debian and Fedora distributions utilizing Xen. The flaw stems from improper initialization of data structures within the HYPERVISOR_xen_version hypercall, allowing local guest users to potentially access sensitive information. With a CVSS score of 2.1 (AV:L/AC:L/Au:N/C:P/I:N/A:N), this vulnerability is considered low severity. It requires local access to the guest system (AV:L) and has low attack complexity (AC:L), with the primary impact being confidentiality (C:P) due to information disclosure. There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. The vulnerability has received minimal community discussion and media coverage, indicating a low level of public attention.

Impacted Technologies

VendorProductVersion(s)CPE
3.2.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:3.2.0:*:*:*:*:*:*:*
3.2.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:3.2.1:*:*:*:*:*:*:*
3.2.2CPE matchmatch criteria
cpe:2.3:o:xen:xen:3.2.2:*:*:*:*:*:*:*
3.2.3CPE matchmatch criteria
cpe:2.3:o:xen:xen:3.2.3:*:*:*:*:*:*:*
3.3.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:3.3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

AV:L/AC:L/Au:N/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
37.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 70th percentile among its peer group of 2,096 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xen

Vendor Advisories (1)

redhatCVE-2015-2045Low

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

Mar 6, 2015

References

lists.fedoraproject.org / pipermail/package-announce/2015-March/152483.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-March/152588.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-March/152776.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-04/msg00014.html
security.gentoo.org / glsa/201504-04
support.citrix.com / article/CTX200484
www1.huawei.com / en/security/psirt/security-bulletins/security-advisories/hw-423503.htm
debian.org / security/2015/dsa-3181
Third Party Advisory
securityfocus.com / bid/72955
securitytracker.com / id/1031806
Third Party AdvisoryVDB Entry
securitytracker.com / id/1031837
Third Party AdvisoryVDB Entry
xenbits.xen.org / xsa/advisory-122.html
PatchVendor Advisory