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CVE-2026-73786— Unauthenticated Network-Based Denial of Service in CPPM systems

Quick assessment

Affected
Hewlett Packard Enterprise (HPE) ClearPass Policy Manager (CPPM)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hewlett Packard Enterprise ClearPass Policy Manager是美国Hewlett Packard Enterprise公司的一款面向企业网络的访问控制与策略管理软件，提供身份认证、授权与终端合规管控。 Hewlett Packard Enterprise ClearPass Policy Manager 6.11.0版本至6.11.14版本存在安全漏洞，该漏洞源于Web管理界面问题，可能导致未经身份验证的远程攻击者发起拒绝服务攻击，造成服务器不稳定和性能下降。

CVSS 7.5 · High EPSS 0.57% · P45

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
Hewlett Packard Enterprise (HPE) ClearPass Policy Manager (CPPM) 6.11.0≤ 6.11.14 affected
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I. Basic Information for CVE-2026-73786

Vulnerability Information
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Vulnerability Title
Unauthenticated Network-Based Denial of Service in CPPM systems
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the web-based management interface of CPPM could allow an unauthenticated remote attacker to conduct a Denial-of-Service (DoS) attack. Successful exploitation could allow an attacker to cause instability and degrade performance of the vulnerable CPPM server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Hewlett Packard Enterprise ClearPass Policy Manager 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hewlett Packard Enterprise ClearPass Policy Manager是美国Hewlett Packard Enterprise公司的一款面向企业网络的访问控制与策略管理软件，提供身份认证、授权与终端合规管控。 Hewlett Packard Enterprise ClearPass Policy Manager 6.11.0版本至6.11.14版本存在安全漏洞，该漏洞源于Web管理界面问题，可能导致未经身份验证的远程攻击者发起拒绝服务攻击，造成服务器不稳定和性能下降。
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

Vendor Product Affected Versions CPE Subscribe
Hewlett Packard Enterprise (HPE) ClearPass Policy Manager (CPPM) 6.11.0 ~ 6.11.14 -

II. Public POCs for CVE-2026-73786

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III. Intelligence Information for CVE-2026-73786

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Vendor Advisories for CVE-2026-73786 (1)

Same Patch Batch · Hewlett Packard Enterprise (HPE) · 2026-09-09 · 5 CVEs total

CVE-2026-73769 7.2 HIGH Authenticated Remote Code Execution in CPPM Web Interface
CVE-2026-73787 7.2 HIGH Authenticated Arbitrary File Write allows Remote Code Execution via CPPM Web Interface
CVE-2026-73788 6.5 MEDIUM Privilege Escalation in ClearPass OnGuard Agent
CVE-2026-73789 5.3 MEDIUM Unauthenticated Insecure Parameter Manipulation allows Data Tampering In CPPM Web Interfac

IV. Related Vulnerabilities

Same product: ClearPass Policy Manager (CPPM)
Same vendor: Hewlett Packard Enterprise (HPE)

V. Comments for CVE-2026-73786

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