# CVE-2026-113363: NEC WebSAM WinShare remote code execution in network communication processing

Source: https://junglewise.ai/threats/cve-2026-113363-improper-input-validation-in-the-network-communication  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-09. Updated: 2026-11-09  
License: CC BY 4.0 with a link back

CVE-2026-113363 · Severity: info · Published 2026-11-09

NEC WebSAM WinShare is a Windows-based asset management system for monitoring and managing IT infrastructure. A remote attacker can send a specially crafted network packet to execute arbitrary commands with system-level privileges on any unpatched system, enabling complete compromise of affected computers.

Technologies: [Nec WebSAM Winshare](https://junglewise.ai/threats/technologies/websam-winshare). Vendors: [Nec](https://junglewise.ai/threats/vendors/nec).

## Quick answers

**Is CVE-2026-113363 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-113363 being exploited in the wild.

**How severe is CVE-2026-113363?** Informational severity, published 9 November 2026.

**Which products and versions are affected?** Nec WebSAM Winshare 7.2.0 through 7.5.0, 7.6.0, 7.7.0 through 7.7.2.

**Is there a fix for CVE-2026-113363?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-113363 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-113363?** Check whether you run Nec WebSAM Winshare at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability stems from improper input validation in the network communication processing component of WebSAM WinShare. A remote, unauthenticated attacker can craft a malicious network packet to achieve arbitrary command execution with SYSTEM privileges. The attack does not require prior authentication or user interaction.

## Affected products

- NEC WebSAM WinShare 7.2.0 through 7.5.0, 7.6.0, 7.7.0 through 7.7.2

## Timeline

- 2026-11-09: disclosed

## References

- [https://jpn.nec.com/security-info/secinfo/nv26-006_en.html](https://jpn.nec.com/security-info/secinfo/nv26-006_en.html)

## Related threats

- [NEC WebSAM WinShare buffer overflow in data receiving](https://junglewise.ai/threats/cve-2026-113364-buffer-overflow-in-the-data-receiving-process-in-nec-corporation)
- [NEC WebSAM Winshare improper access control in installation folder](https://junglewise.ai/threats/cve-2026-113362-improper-access-control-in-the-program-installation-folder-in)