Skip to main content
Apexward Pulse
Type Vulnerability

Privilege escalation

Windows Broadcast DVR User Service Elevation of Privilege Vulnerability

1 sourceCVE-2026-88221

At a glance

Medium
7-day window, from the last update
None observed
Evidence-weighted, not popularity
Why Medium

Medium rather than High: exposure is scored at a default because we cannot see your systems or suppliers.

Briefing

There is no written leader briefing for this story yet. These questions come from the facts we hold.

Questions to ask IT

  • Are we affected by CVE-2026-88221, and which of our systems would be?
  • If it is not yet patched, what mitigation is in place, and will the fix be done by 17 Nov?

Next steps

  1. Confirm whether this affects systems or suppliers in your estate

Summary

  • A vulnerability in the Windows Broadcast DVR User Service could allow an authorised attacker to elevate privileges locally.

Read the original reportMicrosoft Security Update Guide RSS(opens in a new tab)

Pulse

Last change 59m ago · Next recheck 11 Nov 2026, 19:04 UK time

  1. Story10 Nov 2026, 19:04 UK time · 59m ago

    Linked reporting from Microsoft Security Update Guide RSS (vendor psirt).

    Read source (Microsoft Security Update Guide RSS)

1 entry so far. The timeline chart appears once this story has more history.

Sources

How we know

Statements extracted from sources. Higher confidence means stronger corroboration.

  • ClaimedHeadline60% confidence

    Windows Broadcast DVR User Service Elevation of Privilege Vulnerability

  • ProbableSummary fact75% confidence

    Use after free in Windows Broadcast DVR User Service allows an authorised attacker to elevate privileges locally.

  • ConfirmedCVE identifier95% confidence

    Event involves CVE-2026-88221