How severe is CVE-2019-17562?

CVE-2019-17562 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-17562 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-17562?

CVE-2019-17562 affects Apache Cloudstack. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-17562?

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

When was CVE-2019-17562 published?

CVE-2019-17562 was published on 2020-05-14 and last updated on 2026-06-17.

CVE-2019-17562

CVE-2019-17562 is a critical-severity vulnerability in Apache Cloudstack with a CVSS 3.x base score of 9.8. 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-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Apache Cloudstack
Published: 2020-05-14
Last modified: 2026-06-17

Description

A buffer overflow vulnerability has been found in the baremetal component of Apache CloudStack. This applies to all versions prior to 4.13.1. The vulnerability is due to the lack of validation of the mac parameter in baremetal virtual router. If you insert an arbitrary shell command into the mac parameter, v-router will process the command. For example: Normal: http://{GW}:10086/baremetal/provisiondone/{mac}, Abnormal: http://{GW}:10086/baremetal/provisiondone/#';whoami;#. Mitigation of this issue is an upgrade to Apache CloudStack 4.13.1.0 or beyond.

Frequently asked questions

What is CVE-2019-17562?: A buffer overflow vulnerability has been found in the baremetal component of Apache CloudStack. This applies to all versions prior to 4.13.1. The vulnerability is due to the lack of validation of the mac parameter in baremetal virtual router. If you insert an arbitrary shell command into the mac parameter, v-router will process the command. For example: Normal: http://{GW}:10086/baremetal/provisiondone/{mac}, Abnormal: http://{GW}:10086/baremetal/provisiondone/#';whoami;#. Mitigation of this issue is an upgrade to Apache CloudStack 4.13.1.0 or beyond.
How severe is CVE-2019-17562?: CVE-2019-17562 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-17562 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-17562?: CVE-2019-17562 affects Apache Cloudstack. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-17562?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-17562 published?: CVE-2019-17562 was published on 2020-05-14 and last updated on 2026-06-17.

References

https://lists.apache.org/thread.html/rcbaafc6ae1f32e8f1e5987c243a26faf83c5172348ee7c17a54ea7f9%40%3Cusers.cloudstack.apache.org%3E

Affected products (1)

cpe:2.3:a:apache:cloudstack:*:*:*:*:*:*:*:*

More vulnerabilities in Apache Cloudstack

CVE-2012-4501 — Critical (CVSS 10.0): Citrix Cloud.com CloudStack, and Apache CloudStack pre-release, allows remote attackers to make arbitrary API calls by…
CVE-2024-39864 — Critical (CVSS 9.8): The CloudStack integration API service allows running its unauthenticated API server (usually on port 8096 when…
CVE-2024-38346 — Critical (CVSS 9.8): The CloudStack cluster service runs on unauthenticated port (default 9090) that can be misused to run arbitrary…
CVE-2024-29006 — Critical (CVSS 9.8): By default the CloudStack management server honours the x-forwarded-for HTTP header and logs it as the source IP of an…
CVE-2022-35741 — Critical (CVSS 9.8): Apache CloudStack version 4.5.0 and later has a SAML 2.0 authentication Service Provider plugin which is found to be…
CVE-2016-6813 — Critical (CVSS 9.8): Apache CloudStack 4.1 to 4.8.1.0 and 4.9.0.0 contain an API call designed to allow a user to register for the developer…

All CVEs affecting Apache Cloudstack →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-77946 — Critical (CVSS 10.0): A vulnerability was determined in TRENDnet TEW-821DAP 2.2.01b05. Affected by this vulnerability is the function…
CVE-2026-76008 — Critical (CVSS 10.0): A flaw has been found in Comfast CF-N1-S 2.6.0.1. This affects the function get_para_from_uri of the file…
CVE-2026-75784 — Critical (CVSS 10.0): A vulnerability was detected in TRENDnet TEW-WLC100 1v2.07b01. Affected by this issue is the function FUN_0040da4c of…
CVE-2026-74843 — Critical (CVSS 10.0): A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function…
CVE-2026-16367 — Critical (CVSS 10.0): Sandbox escape due to invalid pointer in the Disability Access APIs component. This vulnerability was fixed in Firefox…
CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →