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CVE-2015-5538

25
FAUCET Score

CVE-2015-5538 describes multiple unspecified vulnerabilities in Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway firmware versions prior to 10.1 Build 132.8, 10.5 Build 57.7, and 10.5e Build 56.1505.e. These vulnerabilities, related to the Command Line Interface (CLI) and Web User Interface (UI), allow remote attackers to gain privileges through unknown vectors. With a CVSS score of 10.0, this vulnerability is critical, indicating a network-based attack with low complexity and complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
10.1CPE matchmatch criteria
cpe:2.3:o:citrix:netscaler_application_delivery_controller_firmware:10.1:*:*:*:*:*:*:*
10.5CPE matchmatch criteria
cpe:2.3:o:citrix:netscaler_application_delivery_controller_firmware:10.5:*:*:*:*:*:*:*
10.5eCPE matchmatch criteria
cpe:2.3:o:citrix:netscaler_application_delivery_controller_firmware:10.5e:*:*:*:*:*:*:*
10.1CPE matchmatch criteria
cpe:2.3:o:citrix:netscaler_gateway_firmware:10.1:*:*:*:*:*:*:*
10.5CPE matchmatch criteria
cpe:2.3:o:citrix:netscaler_gateway_firmware:10.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
3.15%
Probability of exploitation in next 30 days
EPSS Percentile
86.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0315 is in the 76th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

support.citrix.com / article/CTX201334
Vendor Advisory
securitytracker.com / id/1033618