CVE-2026-69708
massUse-After-Free in Windows Web Platform Storage Enables Local Privilege Elevation
CVE-2026-69708 is a use-after-free (CWE-416) memory-safety flaw in the Windows Web Platform Storage component, reported by Microsoft. An attacker who already holds low privileges on a local system can trigger the flaw without user interaction, though the high attack complexity (CVSS AC:H) means reliable exploitation is more difficult than in typical local elevation bugs. Successful exploitation results in local privilege elevation, allowing the attacker to run code with elevated rights and gaining high impact on the confidentiality, integrity, and availability of the host. Any Windows deployment that includes the Web Platform Storage component is potentially affected; exact version ranges are not specified in the available data and should be confirmed against Microsoft's advisory. Exploitation status is quiet: there is no known public proof-of-concept, the flaw is not in CISA's KEV catalog, and EPSS estimates only a 0.3% probability of exploitation in the next 30 days.
What to do: Apply the Microsoft security update for CVE-2026-69708 via Windows Update as soon as it is published, and verify affected version ranges against Microsoft's advisory. Until patched, restrict low-privileged local accounts on sensitive hosts and monitor Microsoft channels for updated guidance; no public PoC or in-the-wild exploitation is currently known, so urgent exposure is limited.
| Microsoft Windows (Web Platform Storage component) | — |
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
Use after free in Windows Web Platform Storage allows an authorized attacker to elevate privileges locally.
- Weakness
- CWE-416
- Vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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