CVE-2021-44520

HIGHNVD 8.88.8—

8.8

In Citrix XenMobile Server through 10.12 RP9, there is an Authenticated Command Injection vulnerability, leading to remote code execution with root privileges.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 94.9%
KEV: Not listed

Published

April 13, 2022

Last Modified

November 21, 2024

References (8)

cve@mitrehttps://docs.citrix.com/en-us/xenmobile/server/document-history.html
cve@mitrehttps://gist.github.com/tree-chtsec/766f81e22ae383987d75eedb3b23b709
cve@mitrehttps://support.citrix.com/article/CTX370551
cve@mitrehttps://www.chtsecurity.com/news/09be10ae-b50e-46c9-8ce7-2e995fd988fe
af854a3a-2127-422b-91ae-364da2661108https://docs.citrix.com/en-us/xenmobile/server/document-history.html
af854a3a-2127-422b-91ae-364da2661108https://gist.github.com/tree-chtsec/766f81e22ae383987d75eedb3b23b709
af854a3a-2127-422b-91ae-364da2661108https://support.citrix.com/article/CTX370551
af854a3a-2127-422b-91ae-364da2661108https://www.chtsecurity.com/news/09be10ae-b50e-46c9-8ce7-2e995fd988fe

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:10 UTCepss_batch
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Frequently asked(5)

What is CVE-2021-44520?

CVE-2021-44520 is a high vulnerability published on April 13, 2022. In Citrix XenMobile Server through 10.12 RP9, there is an Authenticated Command Injection vulnerability, leading to remote code execution with root privileges.

When was CVE-2021-44520 disclosed?

CVE-2021-44520 was first published in the National Vulnerability Database on April 13, 2022, 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-2021-44520 actively exploited?

CVE-2021-44520 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-44520?

CVE-2021-44520 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2021-44520?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-44520, 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

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CVE-2021-44520

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-44520?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (8)

Frequently asked(5)

Related CVEs(same CWE)