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CVE-2019-12491

23
FAUCET Score

CVE-2019-12491 is a critical vulnerability affecting OnApp versions before 5.0.0-88, 5.5.0-93, and 6.0.0-196, allowing attackers to execute arbitrary commands with root privileges on servers managed by OnApp for XEN/KVM hypervisors. The attack requires an attacker to control a single server within the cloud, from which they can trigger the OnApp platform to execute commands on target servers. This vulnerability has a CVSS score of 6.6 (MEDIUM) due to its high impact on confidentiality, integrity, and availability, despite requiring high privileges and high attack complexity. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), there has been some community discussion, indicating awareness of the vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
5.0.0CPE matchmatch criteria
cpe:2.3:a:onapp:onapp:5.0.0:-:*:*:*:*:*:*
5.0.0CPE matchmatch criteria
cpe:2.3:a:onapp:onapp:5.0.0:update_79:*:*:*:*:*:*
5.0.0CPE matchmatch criteria
cpe:2.3:a:onapp:onapp:5.0.0:update_82:*:*:*:*:*:*
5.0.0CPE matchmatch criteria
cpe:2.3:a:onapp:onapp:5.0.0:update_83:*:*:*:*:*:*
5.0.0CPE matchmatch criteria
cpe:2.3:a:onapp:onapp:5.0.0:update_87:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.6MEDIUM

CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.7
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.53%
Probability of exploitation in next 30 days
EPSS Percentile
72.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0153 is in the 84th percentile among its peer group of 687 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.2 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

docs.onapp.com / rn/general-security-advisory
MitigationPatchRelease NotesVendor Advisory
skylightcyber.com / 2019/06/07/all-your-cloud-are-belong-to-us-cve-2019-12491
Third Party Advisory