Quick answers
- Is CVE-2026-69597 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-69597 being exploited in the wild.
- How severe is CVE-2026-69597?
- High severity, with a CVSS score of 7.1, published 8 September 2026.
- Which products and versions are affected?
- Microsoft Windows HTTP.sys <UNKNOWN>.
- Is there a fix for CVE-2026-69597?
- 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-2026-69597 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-69597?
- Check whether you run Microsoft Windows HTTP.sys 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 is a use-after-free memory corruption flaw in the Windows HTTP.sys kernel-mode driver. An authorized attacker can trigger the vulnerability over the network by sending specially crafted HTTP requests to exploit a freed memory region, leading to arbitrary code execution in the kernel. The attack requires network connectivity to the target system and an authenticated user context. Successful exploitation results in privilege escalation to SYSTEM level. Microsoft has released patches as part of its regular security updates.
Affected products
- Microsoft Windows HTTP.sys <UNKNOWN>
Timeline
- 2026-09-08: disclosed