# CVE-2026-69793: Microsoft Windows TCP/IP security feature bypass

Source: https://junglewise.ai/threats/cve-2026-69793-microsoft-windows-tcp-ip-security-feature-bypass  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-08. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-69793 · Severity: high · CVSS 7.5 · Published 2026-09-08

Windows TCP/IP, the core networking stack used in all Windows systems, contains a flaw that allows an attacker on the network to circumvent a security feature. This could enable an attacker to bypass critical protections designed to prevent unauthorized network access or attacks, potentially leading to further compromise of the system or network.

Technologies: [Microsoft Windows TCP/IP](https://junglewise.ai/threats/technologies/windows-tcp-ip). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-69793 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-69793 being exploited in the wild.

**How severe is CVE-2026-69793?** High severity, with a CVSS score of 7.5, published 8 September 2026.

**Which products and versions are affected?** Microsoft Windows TCP/IP.

**Is there a fix for CVE-2026-69793?** 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-2026-69793 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-69793?** Check whether you run Microsoft Windows TCP/IP. 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

A vulnerability in Windows TCP/IP involves improper validation of consistency within input, which allows an attacker to bypass a security feature over a network. The flaw stems from insufficient input validation in the TCP/IP stack. An attacker with network access can exploit this vulnerability without requiring authentication or user interaction. The attack could result in circumventing network-level protections. Patches are expected to be available from Microsoft.

## Affected products

- Microsoft Windows TCP/IP

## Timeline

- 2026-09-08: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69793](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69793)

## Related threats

- [Windows TCP/IP use-after-free privilege elevation](https://junglewise.ai/threats/cve-2026-96852-use-after-free-in-windows-tcp-ip-allows-an-authorized-attacker-to)
- [Microsoft Windows TCP/IP use-after-free privilege escalation](https://junglewise.ai/threats/cve-2026-69757-microsoft-windows-tcp-ip-use-after-free-privilege-escalation)