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CVE-2026-51082

Quick assessment

Affected
n/a n/a
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.

Proxmox virtual environment是Proxmox公司开源的一个计算机虚拟化平台。 Proxmox Virtual Environment存在竞争条件问题漏洞，该漏洞源于vncproxy和vncwebsocket API调用之间存在竞争条件，可能导致具有权限的攻击者调用"vncproxy"劫持由不同用户为不同虚拟机并行建立的VNC会话。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.39% · P30

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a n/a n/a affected
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I. Basic Information for CVE-2026-51082

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A race condition between the vncproxy and vncwebsocket API calls in Proxmox Virtual Environment (PVE) 9.x pve-manager before 9.1.9 and 8.x before 8.4.19; qemu-server 9.x before 9.1.7 and 8.x before 8.4.7; and pve-container before 6.1.3 (PVE 9.x) and before 5.3.4 (PVE 8.x) allows an attacker with privileges to call "vncproxy" to hijack a VNC session that is established in parallel by a different user for a different VM.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Proxmox Virtual Environment 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Proxmox virtual environment是Proxmox公司开源的一个计算机虚拟化平台。 Proxmox Virtual Environment存在竞争条件问题漏洞，该漏洞源于vncproxy和vncwebsocket API调用之间存在竞争条件，可能导致具有权限的攻击者调用"vncproxy"劫持由不同用户为不同虚拟机并行建立的VNC会话。
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
- n/a n/a -

II. Public POCs for CVE-2026-51082

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III. Intelligence Information for CVE-2026-51082

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Vendor Advisories for CVE-2026-51082 (1)

Same Patch Batch · n/a · 2026-07-17 · 14 CVEs total

CVE-2026-51080 Proxmox libpve-storage-perl 输入验证错误漏洞
CVE-2025-60357 AhnLab EPP Management 输入验证错误漏洞
CVE-2026-51083 Proxmox Virtual Environment 权限许可和访问控制问题漏洞
CVE-2026-51081 Proxmox Virtual Environment 跨站脚本漏洞
CVE-2026-36669 Feng Office 任意文件上传漏洞
CVE-2026-42168 django-pyas2 安全漏洞
CVE-2026-52199 Generic OEM UZ801 安全漏洞
CVE-2026-51833 Xenforo 安全漏洞
CVE-2025-51677 openRISC OR1200 安全漏洞
CVE-2025-51678 Yosys Headquarters PicoRV32 安全漏洞
CVE-2026-52348 cool-admin 安全漏洞
CVE-2026-52203 MingSoft MCMS 安全漏洞
CVE-2026-52584 libjxl 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2026-51082

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