How severe is CVE-2018-11141?

CVE-2018-11141 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-2018-11141 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11141?

CVE-2018-11141 affects Quest Kace System Management Appliance. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11141?

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-2018-11141 published?

CVE-2018-11141 was published on 2018-05-31 and last updated on 2026-06-17.

CVE-2018-11141

CVE-2018-11141 is a critical-severity vulnerability in Quest Kace System Management Appliance 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-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Quest Kace System Management Appliance
Published: 2018-05-31
Last modified: 2026-06-17

Description

The 'IMAGES_JSON' and 'attachments_to_remove[]' parameters of the '/adminui/advisory.php' script in the Quest KACE System Management Virtual Appliance 8.0.318 can be abused to write and delete files respectively via Directory Traversal. Files can be at any location where the 'www' user has write permissions.

Frequently asked questions

What is CVE-2018-11141?: The 'IMAGES_JSON' and 'attachments_to_remove[]' parameters of the '/adminui/advisory.php' script in the Quest KACE System Management Virtual Appliance 8.0.318 can be abused to write and delete files respectively via Directory Traversal. Files can be at any location where the 'www' user has write permissions.
How severe is CVE-2018-11141?: CVE-2018-11141 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-2018-11141 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11141?: CVE-2018-11141 affects Quest Kace System Management Appliance. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11141?: 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-2018-11141 published?: CVE-2018-11141 was published on 2018-05-31 and last updated on 2026-06-17.

References

https://www.coresecurity.com/advisories/quest-kace-system-management-appliance-multiple-vulnerabilities

Affected products (1)

cpe:2.3:a:quest:kace_system_management_appliance:8.0.318:*:*:*:*:*:*:*

More vulnerabilities in Quest Kace System Management Appliance

CVE-2018-11140 — Critical (CVSS 9.8): The 'reportID' parameter received by the '/common/run_report.php' script in the Quest KACE System Management Appliance…
CVE-2018-11138 — Critical (CVSS 9.8): The '/common/download_agent_installer.php' script in the Quest KACE System Management Appliance 8.0.318 is accessible…
CVE-2018-11136 — Critical (CVSS 9.8): The 'orgID' parameter received by the '/common/download_agent_installer.php' script in the Quest KACE System Management…
CVE-2018-11139 — High (CVSS 8.8): The '/common/ajax_email_connection_test.php' script in the Quest KACE System Management Appliance 8.0.318 is accessible…
CVE-2018-11135 — High (CVSS 8.8): The script '/adminui/error_details.php' in the Quest KACE System Management Appliance 8.0.318 allows authenticated…
CVE-2018-11134 — High (CVSS 8.8): In order to perform actions that requires higher privileges, the Quest KACE System Management Appliance 8.0.318 relies…

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