Improper Input Validation in NEC Corporation WebSAM WinShare Products
CVE-2026-113363

9.3CRITICAL

Key Information:

Vendor

Nec Corporation

Status
Websam Winshare
Vendor
CVE Published:
9 November 2026

What is CVE-2026-113363?

The NEC Corporation WebSAM WinShare versions 7.2.0 through 7.5.0 and 7.6.0, as well as 7.7.0 through 7.7.2, contain a flaw in their network communication processing. This vulnerability allows a remote, unauthenticated attacker to execute arbitrary commands with SYSTEM privileges by sending a specially crafted network packet to the affected system, potentially compromising the integrity and reliability of the server.

Affected Version(s)

WebSAM WinShare Ver 7.2.0 through 7.5.0, Ver 7.6.0 and Ver 7.7.0 through 7.7.2

References

https://jpn.nec.com/security-info/secinfo/nv26-006_en.html

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

reported by Ruslan Sayfiev and Denis Faiustov of Fujitsu Limited, and Masahiro Kawada.
.