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CVE-2026-113362

Quick assessment

Affected
NEC Corporation WebSAM WinShare
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.

NEC Corporation 的 WebSAM Winshare 在版本 7.5.0 及更早版本（7.3.3 除外）、7.6.0 版本以及 7.7.0 至 7.7.1 版本中，其 Windows 程序安装目录存在访问控制不当漏洞。该漏洞允许已在本地通过身份验证的低权限攻击者，通过被 SYSTEM 级别进程加载的恶意 DLL 文件，以 SYSTEM 权限执行任意代码。

CVSS 8.5 · High
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I. Basic Information for CVE-2026-113362

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Access Control in the program installation folder in NEC Corporation WebSAM Winshare Ver 7.5.0 and earlier (excluding Ver 7.3.3), Ver 7.6.0 and Ver 7.7.0 through 7.7.1 on Windows allows a locally authenticated low-privileged attacker to execute arbitrary code with SYSTEM privileges via a crafted DLL file that is loaded by a SYSTEM-level process.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
缺省权限不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
NEC Corporation WebSAM WinShare Ver 7.5.0 and earlier (excluding Ver 7.3.3), Ver 7.6.0 and Ver 7.7.0 through 7.7.1 -

II. Public POCs for CVE-2026-113362

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-113362

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Other References for CVE-2026-113362 (1)

Same Patch Batch · NEC Corporation · 2026-11-09 · 3 CVEs total

CVE-2026-113363 9.3 CRITICAL NEC WinShare 7.2-7.7.2 远程代码执行漏洞
CVE-2026-113364 9.3 CRITICAL NEC WebSAM 7.7.2 及更早版本远程缓冲区溢出漏洞

IV. Related Vulnerabilities

Same product: WebSAM WinShare
Same vendor: NEC Corporation
Same weakness: CWE-276