Citrix ADC/Gateway up to 14.1-73.41 FIPS buffer overflow

Summaryinfo

A vulnerability was found in Citrix ADC and Gateway. It has been classified as very critical. This affects an unknown function. Performing a manipulation results in buffer overflow. This vulnerability is known as CVE-2026-107406. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability classified as very critical has been found in Citrix ADC and Gateway. This affects an unknown code block. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC. NetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:   * For the following versions: Applicable only when configured as a SAML IdP: * NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive * NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive * NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive * NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive   For the following versions: Applicable only when configured as a SAML SP or SAML IdP: * NetScaler ADC and NetScaler Gateway before 14.1-73.37  * NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS  * NetScaler ADC and NetScaler Gateway before 13.1-64.23 * NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279

The advisory is shared at support.citrix.com. This vulnerability is uniquely identified as CVE-2026-107406 since 10/08/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 10/09/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Connectivity Software

Vendor

• Citrix

Name

• ADC
• Gateway

Version

• 13.1-37.282
• 13.1-64.0
• 13.1-64.1
• 13.1-64.2
• 13.1-64.3
• 13.1-64.4
• 13.1-64.5
• 13.1-64.6
• 13.1-64.7
• 13.1-64.8
• 13.1-64.9
• 13.1-64.10
• 13.1-64.11
• 13.1-64.12
• 13.1-64.13
• 13.1-64.14
• 13.1-64.15
• 13.1-64.16
• 13.1-64.17
• 13.1-64.18
• 13.1-64.19
• 13.1-64.20
• 13.1-64.21
• 13.1-64.22
• 13.1-64.23
• 13.1-64.24
• 13.1-64.25
• 13.1-64.26
• 13.1-64.27
• 13.1-64.28
• 13.1-NDcPP 13.1-37.278
• 13.1-NDcPP 13.1-37.279
• 14.1-73.0
• 14.1-73.1
• 14.1-73.2
• 14.1-73.3
• 14.1-73.4
• 14.1-73.5
• 14.1-73.6
• 14.1-73.7
• 14.1-73.8
• 14.1-73.9
• 14.1-73.10
• 14.1-73.11
• 14.1-73.12
• 14.1-73.13
• 14.1-73.14
• 14.1-73.15
• 14.1-73.16
• 14.1-73.17
• 14.1-73.18
• 14.1-73.19
• 14.1-73.20
• 14.1-73.21
• 14.1-73.22
• 14.1-73.23
• 14.1-73.24
• 14.1-73.25
• 14.1-73.26
• 14.1-73.27
• 14.1-73.28
• 14.1-73.29
• 14.1-73.30
• 14.1-73.31
• 14.1-73.32
• 14.1-73.33
• 14.1-73.34
• 14.1-73.35
• 14.1-73.36
• 14.1-73.36 FIPS
• 14.1-73.37
• 14.1-73.37 FIPS
• 14.1-73.38
• 14.1-73.39
• 14.1-73.40
• 14.1-73.41
• 14.1-73.41 FIPS

License

• commercial

Website

• Vendor: https://www.citrix.com/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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