Memory Overflow Vulnerability in Citrix NetScaler ADC and Gateway
CVE-2026-88777

8.8HIGH

Key Information:

Vendor: Citrix Netscaler
Status: Adc; Gateway
Vendor: CVE Published:; 27 September 2026

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What is CVE-2026-88777?

A memory overflow vulnerability has been identified in Citrix NetScaler ADC and Citrix NetScaler Gateway, affecting several versions of the products. This vulnerability could lead to unpredictable or erroneous behavior, potentially resulting in Denial of Service conditions. Users are advised to upgrade to the latest versions to mitigate risks associated with this vulnerability.

Affected Version(s)

ADC 0 < 14.1-73.37

ADC 0 < 13.1-64.23

ADC 0 < 14.1-73.37 FIPS

References

https://support.citrix.com/support-home/kbsearch/article?...

CVSS V4

Score:

8.8

Severity:

HIGH

Confidentiality:

Low

Integrity:

Low

Availability:

High

Attack Vector:

Network

Attack Complexity:

Low

Attack Required:

None

Privileges Required:

Undefined

User Interaction:

None

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Timeline

Vulnerability published
Sep 27, 2026
Vulnerability Reserved
Sep 10, 2026

CVE-2026-88777 Data

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