CVE-2026-113363

Published Nov 9, 2026 CVSS 4.0 · 9.3 Critical EPSS 1.1% KEV · Not listed
Description
Improper Input Validation in the network communication processing in NEC Corporation WebSAM WinShare Ver 7.2.0 through 7.5.0, Ver 7.6.0 and Ver 7.7.0 through 7.7.2 on Windows allows a remote unauthenticated attacker to execute arbitrary commands with SYSTEM privileges via a crafted network packet sent to the computer on which WinShare is running.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Nec
Nec websam Winshare
Vendors & Products Nec
Nec websam Winshare
Type Values Removed Values Added
Title Remote Command Execution via Crafted Network Packet in NEC WebSAM WinShare
Type Values Removed Values Added
Title Remote Command Execution via Crafted Network Packet in NEC WebSAM WinShare
Type Values Removed Values Added
Description Improper Input Validation in the network communication processing in NEC Corporation WebSAM WinShare Ver 7.2.0 through 7.5.0, Ver 7.6.0 and Ver 7.7.0 through 7.7.2 on Windows allows a remote unauthenticated attacker to execute arbitrary commands with SYSTEM privileges via a crafted network packet sent to the computer on which WinShare is running.
Weaknesses CWE-749
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
NEC
Published
Updated
Nov 10, 2026, 2:10 PM
Reserved
Oct 20, 2026, 1:52 AM
Status
Deferred
Published
Nov 9, 2026, 5:18 AM
Modified
Nov 12, 2026, 10:11 PM