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CVE-2026-59309— vCenter authentication-bypass vulnerability

Quick assessment

Affected
VMware Cloud Foundation
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

VMware Cloud Foundation是美国VMware公司的一套一体化混合云平台。该平台包括运维自动化、基础架构自动配置和集成式生命周期管理等功能。 VMware Cloud Foundation存在授权问题漏洞，该漏洞源于VMware Directory Service存在认证绕过漏洞，可能导致具有网络访问权限的攻击者绕过认证并获得未授权访问。

CVSS 9.8 · Critical EPSS 0.61% · P47

Affected Version Matrix 13

VendorProduct Version RangeStatus
VMware Cloud Foundation 9.1.x.x affected
9.0.x.x affected
5.x affected
VMware Telco Cloud Infrastructure 3.0 affected
VMware Telco Cloud Platform 5.1.x affected
5.0.x affected
4.x affected
3.0 affected
VMware vCenter 9.1.x.x< 9.1.0.0300 affected
9.0.x.x< 9.0.2.0100 affected
8.0< 8.0 U3k affected
VMware vSphere Foundation 9.1.x.x affected
9.0.x.x affected
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I. Basic Information for CVE-2026-59309

Vulnerability Information
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Vulnerability Title
vCenter authentication-bypass vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
VMware vCenter contains an authentication bypass vulnerability in the VMware Directory Service. A malicious actor with network access to vCenter may exploit this issue to bypass authentication and gain unauthorized access to the system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证算法的不正确实现
Source: CVE Program / CVE List V5
Vulnerability Title
VMware Cloud Foundation 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
VMware Cloud Foundation是美国VMware公司的一套一体化混合云平台。该平台包括运维自动化、基础架构自动配置和集成式生命周期管理等功能。 VMware Cloud Foundation存在授权问题漏洞，该漏洞源于VMware Directory Service存在认证绕过漏洞，可能导致具有网络访问权限的攻击者绕过认证并获得未授权访问。
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
VMware Cloud Foundation 9.1.x.x -
VMware vSphere Foundation 9.1.x.x -
VMware vCenter 9.1.x.x ~ 9.1.0.0300 -
VMware Telco Cloud Infrastructure 3.0 -
VMware Telco Cloud Platform 5.1.x -

II. Public POCs for CVE-2026-59309

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
default-local-qwen3.6 · 5102 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-59309

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Vendor Advisories for CVE-2026-59309 (1)

Same Patch Batch · VMware · 2026-07-30 · 5 CVEs total

CVE-2026-59310 9.8 CRITICAL vCenter directory-traversal vulnerability
CVE-2026-47876 9.3 CRITICAL VMXNET3 out-of-bounds write vulnerability
CVE-2026-41703 7.6 HIGH Out-of-bounds read vulnerability
CVE-2026-41709 2.7 LOW ESX insufficient logging vulnerability

IV. Related Vulnerabilities

Same product: Cloud Foundation
Same vendor: VMware
Same weakness: CWE-303

V. Comments for CVE-2026-59309

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