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CVE-2021-44519

29
FAUCET Score

CVE-2021-44519 is an authenticated directory traversal vulnerability in Citrix XenMobile Server up to version 10.12 RP9, which can lead to remote code execution. This high-severity vulnerability (CVSS 8.8) allows an attacker with low privileges to execute arbitrary code remotely with low attack complexity, resulting in high impact to confidentiality, integrity, and availability. While there is no evidence of active exploitation or publicly available exploit code in Metasploit, Nuclei, or ExploitDB, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
10.13.0CPE matchmatch criteria
cpe:2.3:a:citrix:xenmobile_server:10.13.0:-:*:*:*:*:*:*
10.13.0CPE matchmatch criteria
cpe:2.3:a:citrix:xenmobile_server:10.13.0:rolling_patch_3:*:*:*:*:*:*
10.13.0CPE matchmatch criteria
cpe:2.3:a:citrix:xenmobile_server:10.13.0:rolling_patch_4:*:*:*:*:*:*
10.13.0CPE matchmatch criteria
cpe:2.3:a:citrix:xenmobile_server:10.13.0:rolling_patch_5:*:*:*:*:*:*
10.13.0CPE matchmatch criteria
cpe:2.3:a:citrix:xenmobile_server:10.13.0:rolling_patch_6:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.65%
Probability of exploitation in next 30 days
EPSS Percentile
84.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0265 is in the 83rd percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

citrixvendor investigatingvia nvd_reference
View patch

References

docs.citrix.com / en-us/xenmobile/server/document-history.html
Vendor Advisory
gist.github.com / tree-chtsec/30932b9c94b8c7e4209d22b8b52d597f
Third Party Advisory
support.citrix.com / article/CTX370551
Vendor Advisory
chtsecurity.com / news/09be10ae-b50e-46c9-8ce7-2e995fd988fe
Third Party Advisory