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CVE-2026-8451— Insufficient input validation leading to memory overread

AI Predicted 9.8 Difficulty: Easy EPSS 15.65% · P97

Possible ATT&CK Techniques 1AI

T1210 · Exploitation of Remote Services

Affected Version Matrix 6

VendorProductVersion RangeStatus
NetScalerADC14.1< 72.61affected
13.1< 63.18affected
14.1 FIPs< 72.61affected
13.1 FIPS and NDcPP< 37.272affected
NetScalerGateway14.1< 72.61affected
13.1< 63.18affected
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I. Basic Information for CVE-2026-8451

Vulnerability Information
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Vulnerability Title
Insufficient input validation leading to memory overread
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient input validation in NetScaler ADC and NetScaler Gateway leading to memory overread if NetScaler ADC or NetScaler Gateway is configured as a SAML IDP
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
NetScaler ADC 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NetScaler ADC是NetScaler公司的一款负载均衡产品。 NetScaler ADC存在缓冲区错误漏洞，该漏洞源于输入验证不足，可能导致内存越界读取。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
NetScalerADC 14.1 ~ 72.61 -
NetScalerGateway 14.1 ~ 72.61 -

II. Public POCs for CVE-2026-8451

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III. Intelligence Information for CVE-2026-8451

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Vendor Advisories for CVE-2026-8451 (1)

Same Patch Batch · NetScaler · 2026-06-30 · 6 CVEs total

CVE-2026-10817Insufficient input validation leading to memory overread
CVE-2026-10816Arbitrary File Read (Unauthenticated)
CVE-2026-13474Denial of service via malformed HTTP/2 requests
CVE-2026-8452Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of
CVE-2026-8655Multiple Memory overflow vulnerabilities leading to unpredictable or erroneous behavior an

IV. Related Vulnerabilities

Same product: ADC
Same vendor: NetScaler

V. Comments for CVE-2026-8451

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