# CVE-2026-113363: CVE-2026-113363

Status: published. Published: 2026-11-09. Updated: 2026-11-09.

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 remediation reported in collected sources

## Affected products and versions

- 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 (affected). Source: CNA: NEC

## Severity and prioritization

- CVSS 4.0: 9.3 (critical); 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; source: CNA: NEC

- CVSS 4.0: 9.3 (critical); 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: psirt-info@cyber.jp.nec.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-749

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

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

- https://jpn.nec.com/security-info/secinfo/nv26-006_en.html (psirt-info@cyber.jp.nec.com)

## Provenance

- CNA: NEC: https://www.cve.org/CVERecord?id=CVE-2026-113363; retrieved 2026-11-09; source updated 2026-11-09

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-113363; retrieved 2026-11-09; source updated 2026-11-09

Revision: 0b862c39b6ec43f59e54db3f7b15ac68386998f39570a0398654e1b48788d7ca

Canonical: https://y2.dev/cve/CVE-2026-113363

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