Quick answers
- Is CVE-2026-88234 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-88234 being exploited in the wild.
- How severe is CVE-2026-88234?
- Critical severity, with a CVSS score of 9.8, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Windows <UNKNOWN>.
- Is there a fix for CVE-2026-88234?
- 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-2026-88234 attacked?
- It is attacked over the network, in an operating system.
- Am I affected by CVE-2026-88234?
- Check whether you run Microsoft Windows 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
A use-after-free (release of invalid pointer/reference) exists in the Windows iSCSI initiator implementation. The vulnerability is network-reachable and requires no authentication or user interaction, allowing a remote attacker to trigger the defect by crafting a malicious iSCSI protocol packet and gain code execution in the kernel context.
Affected products
- Microsoft Windows <UNKNOWN>
Timeline
- 2026-11-10: disclosed