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