Status
This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog as confirmed to be actively exploited. Not a theoretical risk — being used in the field.
Description
Microsoft MSHTML Framework contains a protection mechanism failure vulnerability that could allow an unauthorized attacker to bypass a security feature over a network.
Details
- Manufacturer: Microsoft
- Product: Windows
- Catalog addition: 2026-02-10
CISA-mandated Actions
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Deadline for federal agencies: 2026-03-03
Microsoft
Windows