How severe is CVE-2018-18571?

CVE-2018-18571 has a CVSS 3.x base score of 9.1, 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 none.

Is CVE-2018-18571 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18571?

CVE-2018-18571 primarily affects Citrix Xenmobile Server. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-18571?

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-2018-18571 published?

CVE-2018-18571 was published on 2019-06-05 and last updated on 2026-06-17.

CVE-2018-18571

CVE-2018-18571 is a critical-severity vulnerability in Citrix Xenmobile Server with a CVSS 3.x base score of 9.1. 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-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Citrix Xenmobile Server
Published: 2019-06-05
Last modified: 2026-06-17

Description

An Incorrect Access Control vulnerability has been identified in Citrix XenMobile Server 10.8.0 before Rolling Patch 6 and 10.9.0 before Rolling Patch 3. An attacker can impersonate and take actions on behalf of any Mobile Application Management (MAM) enrolled device.

Frequently asked questions

What is CVE-2018-18571?: An Incorrect Access Control vulnerability has been identified in Citrix XenMobile Server 10.8.0 before Rolling Patch 6 and 10.9.0 before Rolling Patch 3. An attacker can impersonate and take actions on behalf of any Mobile Application Management (MAM) enrolled device.
How severe is CVE-2018-18571?: CVE-2018-18571 has a CVSS 3.x base score of 9.1, 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 none.
Is CVE-2018-18571 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18571?: CVE-2018-18571 primarily affects Citrix Xenmobile Server. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-18571?: 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-2018-18571 published?: CVE-2018-18571 was published on 2019-06-05 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:a:citrix:xenmobile_server:10.8.0:-:*:*:*:*:*:*
cpe:2.3:a:citrix:xenmobile_server:10.8.0:rolling_patch1:*:*:*:*:*:*
cpe:2.3:a:citrix:xenmobile_server:10.8.0:rolling_patch2:*:*:*:*:*:*
cpe:2.3:a:citrix:xenmobile_server:10.8.0:rolling_patch3:*:*:*:*:*:*
cpe:2.3:a:citrix:xenmobile_server:10.8.0:rolling_patch4:*:*:*:*:*:*
cpe:2.3:a:citrix:xenmobile_server:10.8.0:rolling_patch5:*:*:*:*:*:*
cpe:2.3:a:citrix:xenmobile_server:10.9.0:-:*:*:*:*:*:*
cpe:2.3:a:citrix:xenmobile_server:10.9.0:rolling_patch1:*:*:*:*:*:*
cpe:2.3:a:citrix:xenmobile_server:10.9.0:rolling_patch2:*:*:*:*:*:*

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Other CWE-287 (Improper Authentication) vulnerabilities

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CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

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