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CVE-2010-4566

65
FAUCET Score

CVE-2010-4566 describes a critical command injection vulnerability in the web authentication forms of Citrix Access Gateway Enterprise Edition 9.2-49.8 and earlier, and Access Gateway Standard and Advanced Editions before version 5.0. Attackers can execute arbitrary commands by injecting shell metacharacters into the password field during authentication. This vulnerability carries a CVSS score of 9.3, indicating high severity with network-based attacks, medium complexity, and complete compromise of confidentiality, integrity, and availability. Exploit code is publicly available, including Metasploit modules and ExploitDB entries, though there is no indication of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 9.2-49.8CPE matchmatch criteria
cpe:2.3:a:citrix:access_gateway:*:*:enterprise:*:*:*:*:*
.8.0CPE matchmatch criteria
cpe:2.3:a:citrix:access_gateway:.8.0:m50.3:enterprise:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:a:citrix:access_gateway:8.0:m48.7:enterprise:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:a:citrix:access_gateway:8.0:m49.2:enterprise:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:a:citrix:access_gateway:8.0:m59.1:enterprise:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
27.79%
Probability of exploitation in next 30 days
EPSS Percentile
97.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Metasploit: Citrix Access Gateway Command Execution · Dec 21, 2010
ExploitDB: EDB-16916 · Mar 3, 2011
This CVE's current EPSS score of 0.2779 is in the 92nd percentile among its peer group of 8,913 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

securityreason.com / securityalert/8119
support.citrix.com / article/CTX127613
Vendor Advisory
exploit-db.com / exploits/16916
osvdb.org / 70099
securitytracker.com / id
vsecurity.com / resources/advisory/20101221-1