Recorded 18 Oct 2026 at 23:19 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.
Guidance timelinesupport.microsoft.com
PAC validation enforcement changes
Microsoft's guidance publishes 7 dates, from 9 Apr 2024 to 14 Oct 2025 (How to manage PAC Validation changes related to CVE-2024-26248 and CVE-2024-29056).
What it said
- Take Action
- 9 Apr 2024 or later · Audit / monitor, conditional
- How to manage PAC Validation changes related to CVE-2024-26248 and CVE-2024-29056
- 1 Oct 2024 · Enforced by default
- How to manage PAC Validation changes related to CVE-2024-26248 and CVE-2024-29056 (2)
- October 2024 · Enforced by default
- How to manage PAC Validation changes related to CVE-2024-26248 and CVE-2024-29056 (3)
- January 2025 or later · Enforced by default
- How to manage PAC Validation changes related to CVE-2024-26248 and CVE-2024-29056 (4)
- 9 Jan 2025 · Enforced by default
- Timeline of changes
- April 2025 or later · Retired / removed
- How to manage PAC Validation changes related to CVE-2024-26248 and CVE-2024-29056 (5)
- 14 Oct 2025 or later
- Settings named
- CrossDomainFilteringLevel, PacSignatureValidationLevel
Recorded links
What changed
First observed 18 Oct 2026No field changes in the recorded history.
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