OnApp before 5.0.0-88, 5.5.0-93, and 6.0.0-196 allows an attacker to run arbitrary commands with root privileges on servers managed by OnApp for XEN/KVM hypervisors. To exploit the vulnerability an attacker has to have control of a single server on a given cloud (e.g. by renting one). From the source server, the attacker can craft any command and trigger the OnApp platform to execute that command with root privileges on a target server.
CVE-2019-12491
MEDIUMNVD 6.66.6—
EchelonGraph scoreMEDIUM confidence
Score 6.6 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 6.6; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.6
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 2%CVSS: 6.6Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.6
- EG Score
- 6.6(medium)
- EPSS
- 71.8%
- KEV
- Not listed
Published
June 19, 2019
Last Modified
November 21, 2024
References (4)
- cve@mitrehttps://docs.onapp.com/rn/general-security-advisory
- cve@mitrehttps://skylightcyber.com/2019/06/07/all-your-cloud-are-belong-to-us-cve-2019-12491/
- af854a3a-2127-422b-91ae-364da2661108https://docs.onapp.com/rn/general-security-advisory
- af854a3a-2127-422b-91ae-364da2661108https://skylightcyber.com/2019/06/07/all-your-cloud-are-belong-to-us-cve-2019-12491/
Data Freshness Timeline
(refreshed 10× in last 7d / 45× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 16:25 UTCEPSS rescore
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- 2026-05-29 13:42 UTCEPSS rescore
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- 2026-05-27 18:13 UTCEG score recompute
- 2026-05-27 18:13 UTCGHSA enrichment
- 2026-05-27 13:38 UTCEPSS rescore
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- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-24 05:02 UTCOSV refresh
Frequently asked(5)
What is CVE-2019-12491?
CVE-2019-12491 is a medium vulnerability published on June 19, 2019. OnApp before 5.0.0-88, 5.5.0-93, and 6.0.0-196 allows an attacker to run arbitrary commands with root privileges on servers managed by OnApp for XEN/KVM hypervisors. To exploit the vulnerability an attacker has to have control of a single server on a given cloud (e.g. by renting one). From the…
When was CVE-2019-12491 disclosed?
CVE-2019-12491 was first published in the National Vulnerability Database on June 19, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-12491 actively exploited?
CVE-2019-12491 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 71.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-12491?
CVE-2019-12491 has a CVSS v3 base score of 6.6 (NVD).
How do I remediate CVE-2019-12491?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-12491, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2019-12491
Is Your Infrastructure Affected by CVE-2019-12491?
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