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CVE-2015-2044

11
FAUCET Score

CVE-2015-2044 describes a data initialization vulnerability within the X86 emulation routines of Xen versions 3.2.x through 4.5.x. This flaw allows local HVM guest users to potentially gain sensitive information by exploiting unsupported access sizes. With a CVSS score of 2.1, this vulnerability is considered low severity, requiring local access and having a low impact on confidentiality. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

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
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0041 is in the 60th 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 Advisories (1)

redhatCVE-2015-2044Low

xen: information leak via internal x86 system device emulation (XSA-121)

Mar 6, 2015

References

lists.fedoraproject.org / pipermail/package-announce/2015-March/152483.html
lists.fedoraproject.org / pipermail/package-announce/2015-March/152588.html
lists.fedoraproject.org / pipermail/package-announce/2015-March/152776.html
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
securityfocus.com / bid/72954
securitytracker.com / id/1031806
securitytracker.com / id/1031836
xenbits.xen.org / xsa/advisory-121.html