CVE WatchOct 4, 2026

CVE-2026-88779

Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

CVSS

—

No CVSS

EPSS

0.3%

p18

KEV

YES

Oct 4, 2026

Exploit Today

0-100

Published: Oct 4, 2026 · Last modified: Oct 4, 2026 · CWE-119

EPSS · 30d

Not enough EPSS history yet.

KEV catalog record

Product

Citrix / NetScaler

Vulnerability

Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

Added to KEV

Oct 4, 2026

Remediate by

Oct 7, 2026

Known ransomware use

Summary description

Citrix NetScaler ADC (formerly Citrix ADC) and Citrix NetScaler Gateway (formerly Citrix Gateway) contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for a denial of service.

Required action

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Notes

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697174 ; https://community.citrix.com/techzone-blogs/110_security-updates/understanding-and-addressing-cve-2026-88779-in-citrix-netscaler-adc-and-citrix-netscaler-gateway/ ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-88779

Technical description

Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before 14.1-73.41 and before 13.1-64.28.

Official references

Related CVEs

CVECVSSEPSSKEVRExploitTitleMod.

CVE-2026-1051642.7 LOW

—

——0A flaw has been found in NASA cFS up to 7.0.1. This issue affects the function CFE_FS_ParseInputFileNameEx of the file cfe/modules/fs/fsw/src/cfe_fs_api.c. This manipulation causes out-of-bounds read. Remote exploitation of the attack is possible. The pull request to fix this issue awaits acceptance.6h CVE-2026-1046119.1 CRI

40.2%

——12A vulnerability was detected in Tenda AC9 15.03.02.13. Affected is an unknown function of the file /goform/fast_setting_internet_set of the component POST Request Handler. Performing a manipulation of the argument netWanType results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used.3d CVE-2026-10461010.0 CRI

49.1%

——15A security vulnerability has been detected in Tenda HG7, HG9 and HG10 300001138_en_xpon. This impacts the function boaGetVar of the file /boaform/formLoopBack of the component Boa Web Server. Such manipulation of the argument Ethtype leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.3d CVE-2026-475507.8 HIG

2.2%

——1NVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel mode layer where an unprivileged local user can supply an untrusted pointer that the driver dereferences without validation. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering.4d CVE-2026-1032276.3 MED

42.2%

——13A weakness has been identified in GPAC up to 26.07.0. Affected by this issue is the function gf_dash_resolve_url of the file src/media_tools/dash_client.c of the component DASH Client. This manipulation causes buffer overflow. The attack is possible to be carried out remotely. Upgrading to version abi-16.26 can resolve this issue. Patch name: 4c8e26f278ff63eec57968f7bc696f604bb0cffd. It is recommended to upgrade the affected component.2d CVE-2026-767382.7 LOW

12.6%

——4A buffer overflow vulnerability exists in the API endpoint of HPE Networking Instant On that could allow an authenticated attacker with administrative privileges to cause a denial of service. Successful exploitation could allow an attacker to interrupt the normal operation of the affected service, which recovers without manual intervention.5d