Quick answers
- Is CVE-2026-65681 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-65681 being exploited in the wild.
- How severe is CVE-2026-65681?
- High severity, with a CVSS score of 7.5, published 11 August 2026.
- Which products and versions are affected?
- Microsoft Windows iSCSI Target Service <UNKNOWN>.
- Is there a fix for CVE-2026-65681?
- 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-2026-65681 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-65681?
- Check whether you run Microsoft Windows iSCSI Target Service 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
This is a null pointer dereference vulnerability in Windows iSCSI Target Service that can be triggered over the network. The vulnerability requires no authentication and can be exploited by sending a specially crafted network request to the iSCSI service. An attacker can cause a denial of service by crashing the service, disrupting iSCSI storage access for dependent applications and systems. Patches are expected to be available from Microsoft.
Affected products
- Microsoft Windows iSCSI Target Service <UNKNOWN>
Timeline
- 2026-08-11: disclosed