CVE-2014-7851

CVE-2014-7851 is a high-severity vulnerability in Redhat Ovirt-engine with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

• Severity: High (CVSS 3.x base score 7.5)
• CVSS v2: 6.0
• EPSS exploit prediction: 1% (59th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-264
• Affected product: Redhat Ovirt-engine
• Published: 2017-10-16
• Last modified: 2026-06-17

Description

oVirt 3.2.2 through 3.5.0 does not invalidate the restapi session after logout from the webadmin, which allows remote authenticated users with knowledge of another user's session data to gain that user's privileges by replacing their session token with that of another user.

Frequently asked questions

What is CVE-2014-7851?

oVirt 3.2.2 through 3.5.0 does not invalidate the restapi session after logout from the webadmin, which allows remote authenticated users with knowledge of another user's session data to gain that user's privileges by replacing their session token with that of another user.

How severe is CVE-2014-7851?

CVE-2014-7851 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2014-7851 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-7851?

CVE-2014-7851 primarily affects Redhat Ovirt-engine. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-7851?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2014-7851 published?

CVE-2014-7851 was published on 2017-10-16 and last updated on 2026-06-17.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1161730
• https://bugzilla.redhat.com/show_bug.cgi?id=1165311

Affected products (30)

• cpe:2.3:a:ovirt:ovirt:3.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:ovirt:ovirt:3.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.3:beta1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.3:rc1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.3:rc2:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.3.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.3.1:beta1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.3.1:rc1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.3.2:beta1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.3.3:beta1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.3.3:rc1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.3.4:beta1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.3.4:rc1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.3.5:rc1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.4.0:beta1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.4.0:beta2:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.4.0:beta3:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.4.0:rc2:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.4.0:rc3:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.4.1:rc1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.4.2:rc1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.4.3:*:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.4.3:rc1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.4.4:*:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.4.4:rc1:*:*:*:*:*:*
• cpe:2.3:a:redhat:ovirt-engine:3.5.0:*:*:*:*:*:*:*

More vulnerabilities in Redhat Ovirt-engine

• CVE-2017-7510 — High (CVSS 8.8): In ovirt-engine 4.1, if a host was provisioned with cloud-init, the root password could be revealed through the REST…
• CVE-2014-0151 — Medium (CVSS 6.8): Cross-site request forgery (CSRF) vulnerability in oVirt Engine before 3.5.0 beta2 allows remote attackers to hijack…
• CVE-2014-0152 — Medium (CVSS 6.8): Session fixation vulnerability in the web admin interface in oVirt 3.4.0 and earlier allows remote attackers to hijack…
• CVE-2015-1780 — Medium (CVSS 6.5): oVirt users with MANIPULATE_STORAGE_DOMAIN permissions can attach a storage domain to any data-center
• CVE-2016-3077 — Medium (CVSS 6.5): The VersionMapper.fromKernelVersionString method in oVirt Engine allows remote authenticated users to cause a denial of…
• CVE-2016-3113 — Medium (CVSS 6.1): Cross-site scripting (XSS) vulnerability in ovirt-engine allows remote attackers to inject arbitrary web script or HTML.

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• CVE-2016-7457 — Critical (CVSS 10.0): VMware vRealize Operations (aka vROps) 6.x before 6.4.0 allows remote authenticated users to gain privileges, or halt…
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• CVE-2015-8267 — Critical (CVSS 10.0): The PasswordReset.Controllers.ResetController.ChangePasswordIndex method in PasswordReset.dll in Dovestones AD Self…
• CVE-2015-7919 — Critical (CVSS 10.0): SearchBlox 8.3 before 8.3.1 allows remote attackers to write to the config file, and consequently cause a denial of…
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