Vulnerability Monitor

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CVE-2015-3642

The TLS and DTLS processing functionality in Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway devices with firmware 9.x before 9.3 Build 68.5, 10.0 through Build 78.6, 10.1 before Build 130.13, 10.1.e before Build 130.1302.e, 10.5 before Build 55.8, and 10.5.e before Build 55.8007.e makes it easier for man-in-the-middle attackers to obtain cleartext data via a padding-oracle attack, a variant of CVE-2014-3566 (aka POODLE).

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.9, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 3 products from citrix, from citrix, from citrix organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2017-08-02T19:29:00.477

Last Modified

2026-05-13T00:24:29.033

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 5.9 (MEDIUM)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

8.6

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-200
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System citrix netscaler_firmware 9.0 No
Operating System citrix netscaler_firmware 9.1 No
Operating System citrix netscaler_firmware 9.2 No
Operating System citrix netscaler_firmware 10.0 No
Operating System citrix netscaler_firmware 10.1 No
Operating System citrix netscaler_firmware 10.1e No
Operating System citrix netscaler_firmware 10.5 No
Operating System citrix netscaler_firmware 10.5e No
Hardware citrix netscaler_application_delivery_controller - Yes
Operating System citrix netscaler_firmware 9.0 No
Operating System citrix netscaler_firmware 9.1 No
Operating System citrix netscaler_firmware 9.2 No
Operating System citrix netscaler_firmware 10.0 No
Operating System citrix netscaler_firmware 10.1 No
Operating System citrix netscaler_firmware 10.1e No
Operating System citrix netscaler_firmware 10.5 No
Operating System citrix netscaler_firmware 10.5e No
Hardware citrix netscaler_gateway - Yes
References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For citrix's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.