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CVE-2015-5154

20
FAUCET Score

CVE-2015-5154 describes a heap-based buffer overflow in the QEMU IDE subsystem, affecting Xen 4.5.x and earlier, as well as products from Fedora and SUSE. This vulnerability allows local guest users to execute arbitrary code on the host system by sending unspecified ATAPI commands when a CDROM drive is enabled within the guest. With a CVSS score of 7.2, it represents a high-severity local attack with low complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation, no public exploit code (Metasploit, Nuclei, ExploitDB), and it is not listed in CISA's KEV catalog, it has garnered some community and media attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.5.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
4.5.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:*
11CPE matchmatch criteria
cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp4:*:*:*:*:*:*
11CPE matchmatch criteria
cpe:2.3:o:suse:linux_enterprise_desktop:11:sp4:*:*:*:*:*:*
12CPE matchmatch criteria
cpe:2.3:o:suse:linux_enterprise_desktop:12:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.63%
Probability of exploitation in next 30 days
EPSS Percentile
46.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0063 is in the 68th percentile among its peer group of 3,241 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qemu-kvm-10:1.5.3-86.el7_1.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7Fixed in: qemu-kvm-rhev-10:2.1.2-23.el7_1.6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7Fixed in: qemu-kvm-rhev-10:2.1.2-23.el7_1.6
View patch
redhatpatch availablevia redhat_api
Product: RHEV 3.X Hypervisor and Agents for RHEL-7Fixed in: qemu-kvm-rhev-10:2.1.2-23.el7_1.6
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Virtualization 3Fixed in: rhev-hypervisor

Vendor Advisories (1)

redhatCVE-2015-5154Important

qemu: ide: atapi: heap overflow during I/O buffer memory access

Jul 27, 2015

References

lists.fedoraproject.org / pipermail/package-announce/2015-August/163472.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-August/163658.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-August/163681.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-07/msg00041.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-07/msg00042.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-08/msg00017.html
lists.opensuse.org / opensuse-security-announce/2015-08/msg00018.html
lists.opensuse.org / opensuse-security-announce/2015-08/msg00020.html
lists.opensuse.org / opensuse-security-announce/2015-08/msg00022.html
lists.opensuse.org / opensuse-security-announce/2015-09/msg00027.html
lists.opensuse.org / opensuse-security-announce/2015-10/msg00019.html
rhn.redhat.com / errata/RHSA-2015-1507.html
rhn.redhat.com / errata/RHSA-2015-1508.html
rhn.redhat.com / errata/RHSA-2015-1512.html
security.gentoo.org / glsa/201510-02
Third Party Advisory
security.gentoo.org / glsa/201604-03
support.citrix.com / article/CTX201593
Third Party Advisory
debian.org / security/2015/dsa-3348
securityfocus.com / bid/76048
securitytracker.com / id/1033074
xenbits.xen.org / xsa/advisory-138.html
PatchVendor Advisory