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Type Vulnerability

Microsoft · Privilege escalation

SQL Server Elevation of Privilege Vulnerability

1 sourceCVE-2026-96956

At a glance

Low
30-day window, from the last update
None observed
Evidence-weighted, not popularity
Why Low

Low rather than Medium: UK relevance is 40 of 100, little UK-specific signal so far.

Briefing

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

Questions to ask IT

  • Do we run Microsoft Sql Server, and which versions?
  • If it is not yet patched, what mitigation is in place, and will the fix be done by 16 Nov?

Next steps

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

Summary

  • A stack-based buffer overflow in SQL Server could allow an authorised attacker to elevate privileges over a network.

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

Products and services involved

Pulse

Last checked 3 Nov · Recheck overdue since 10 Nov 2026, 03:35 UK time · 2 quiet checks collapsed

  1. Story13 Oct 2026, 21:41 UK time · 13 Oct

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

    Read source (Microsoft Security Update Guide RSS)
  2. Signal17 Oct 2026, 12:35 UK time · 17 Oct

    in the next 30 days first recorded at 0.4% (lower likelihood signal, not confirmed exploitation).

2 entries 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

    SQL Server Elevation of Privilege Vulnerability

  • ProbableSummary fact75% confidence

    Stack-based buffer overflow in SQL Server allows an authorised attacker to elevate privileges over a network.

  • ConfirmedCVE identifier95% confidence

    Event involves CVE-2026-96956