VDSM and libvirt in Red Hat Enterprise Virtualization Hypervisor (aka RHEV-H) 7-7.x before 7-7.2-20151119.0 and 6-6.x before 6-6.7-20151117.
VDSM and libvirt in Red Hat Enterprise Virtualization Hypervisor (aka RHEV-H) 7-7.x before 7-7.2-20151119.0 and 6-6.x before 6-6.7-20151117.0 as packaged in Red Hat Enterprise Virtualization before 3.5.6 when VSDM is run with -spice disable-ticketing and a VM is suspended and then restored, allows remote attackers to log in without authentication via unspecified vectors.
- Published
- Feb 25, 2020
- Updated
- Jun 16, 2026
- EPSS
- 1.5% · 73th percentile
- CWE
- CWE-306
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Report tools
Action score
30
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.5%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| redhat | enterprise virtualization | cpe:2.3:a:redhat:enterprise_virtualization |
| redhat | enterprise virtualization hypervisor | cpe:2.3:a:redhat:enterprise_virtualization_hypervisor |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- redhat enterprise virtualizationbefore 3.5.6
- redhat enterprise virtualization hypervisor6-6.0 and later · before 6-6.7-20151117.0
- redhat enterprise virtualization hypervisor7-7.0 and later · before 7-7.2-20151119.0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.
RedHat Enterprise Virtualization Hypervisor (aka RHEV-H)
- 7-7.x before 7-7.2-20151119.0 and 6-6.x before 6-6.7-20151117.0affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Red Hat:enterprise_linux:6::hypervisor | rhev-hypervisor6 | before 0:6.7-20151123.0.el6ev | 0:6.7-20151123.0.el6ev |
| Red Hat:enterprise_linux:6::hypervisor | rhev-hypervisor7 | before 0:7.2-20151129.1.el6ev | 0:7.2-20151129.1.el6ev |
| Red Hat:enterprise_linux:7::hypervisor | rhev-hypervisor7 | before 0:7.2-20151129.1.el7ev | 0:7.2-20151129.1.el7ev |
Same product
redhat: all recordsOther highest-scoring records for the same primary product.
- CVE-2008-3522Buffer overflow in the jas_stream_printf function in libjasper/base/jas_stream.c in JasPer 1.900.1 might allow context-dependent attackers t41Plan
- CVE-2013-1591Stack-based buffer overflow in libpixman, as used in Pale Moon before 15.4 and possibly other products, has unspecified impact and context-d40Plan
- CVE-2013-2152Unquoted Windows search path vulnerability in the SPICE service, as used in Red Hat Enterprise Virtualization (RHEV) 3.2, allows local users28Monitor
- CVE-2013-2151Unquoted Windows search path vulnerability in Red Hat Enterprise Virtualization (RHEV) 3 and 3.2 allows local users to gain privileges via a28Monitor
- CVE-2013-2176Unquoted Windows search path vulnerability in the Red Hat Enterprise Virtualization Application Provisioning Tool (RHEV-APT) in the rhev-gue28Monitor
- CVE-2016-6338ovirt-engine-webadmin, as used in Red Hat Enterprise Virtualization Manager (aka RHEV-M) for Servers and RHEV-M 4.0, allows physically proxi27Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| red hat:rhev-hypervisor6 | 0:6.7-20151123.0.el6ev · Red Hat:enterprise_linux:6::hypervisor | Package registry (OSV) |
| red hat:rhev-hypervisor7 | 0:7.2-20151129.1.el6ev · Red Hat:enterprise_linux:6::hypervisor | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- high · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
CWE-306 · Missing Authentication for Critical FunctionCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
nvd-primary
Root cause
A function added for development or support ships to production without authentication. It often relies on the assumption that it is “only reachable from the internal network.”
The bug in code
The whole CWE-306 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
// Added for the support teamapp.post("/maintenance/reset", resetDevice);Fixed
if (config.maintenanceEnabled) { app.post( "/maintenance/reset", requireSession, requireRole("admin"), resetDevice );}Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- access.redhat.com/security/cve/cve-2015-5201
- bugzilla.redhat.com/show_bug.cgi?id=1253882
- bugzilla.redhat.com/show_bug.cgi?id=1273144
- rhn.redhat.com/errata/RHEA-2015-2527.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.