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CVE-2015-5201

23
FAUCET Score

CVE-2015-5201 describes an authentication bypass vulnerability affecting VDSM and libvirt in Red Hat Enterprise Virtualization Hypervisor versions 7-7.x and 6-6.x, specifically when VDSM is configured with "-spice disable-ticketing" and a VM is suspended and then restored. This allows remote attackers to log in without authentication. The vulnerability has a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity that can lead to high integrity impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.5.6CPE matchmatch criteria
cpe:2.3:a:redhat:enterprise_virtualization:*:*:*:*:*:*:*:*
>= 6-6.0, < 6-6.7-20151117.0CPE matchmatch criteria
cpe:2.3:a:redhat:enterprise_virtualization_hypervisor:*:*:*:*:*:*:*:*
>= 7-7.0, < 7-7.2-20151119.0CPE matchmatch criteria
cpe:2.3:a:redhat:enterprise_virtualization_hypervisor:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.46%
Probability of exploitation in next 30 days
EPSS Percentile
70.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0146 is in the 52nd percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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 (7)

redhatpatch availablevia redhat_api
Product: RHEV 3.X Hypervisor and Agents for RHEL-7Fixed in: rhev-hypervisor7-0:7.2-20151129.1.el7ev
View patch
redhatpatch availablevia redhat_api
Product: RHEV 3.X Hypervisor and Agents for RHEL-6Fixed in: rhev-hypervisor6-0:6.7-20151123.0.el6ev
View patch
redhatpatch availablevia redhat_api
Product: RHEV 3.X Hypervisor and Agents for RHEL-6Fixed in: rhev-hypervisor7-0:7.2-20151129.1.el6ev
View patch
redhatvendor investigatingvia nvd_reference
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Gluster Storage 3.1Fixed in: vdsm
redhatno patchvia redhat_api
Product: Red Hat Enterprise Virtualization 3Fixed in: vdsm
redhatend of lifevia redhat_api
Product: Red Hat Storage 2.1Fixed in: vdsm

Vendor Advisories (1)

redhatCVE-2015-5201Moderate

RHEV: vdsm spice disable-ticketing and VM suspend and restore allows auth bypass

Sep 15, 2015

References

access.redhat.com / security/cve/cve-2015-5201
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingVendor Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingVendor Advisory
rhn.redhat.com / errata/RHEA-2015-2527.html
Vendor Advisory