Memory corruption
Out-of-bounds read in Windows USB Hub Driver allows an unauthorized attacker to elevate privileges with a physical attack
At a glance
Low rather than Medium: UK relevance is 40 of 100, little UK-specific signal so far.
Briefing
- Do not treat uncorroborated claims as confirmed breaches.
Questions to ask IT
- Are we affected by CVE-2026-72999, 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 30 Nov?
Next steps
- Confirm whether this affects systems or suppliers in your estate
Vulnerability facts
Full CVE detail CVE-2026-72999- 6.8 · MediumExploitable only with physical access without any account, and no one has to click or open anything. High impact on confidentiality, integrity and availability.CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Not listed
- ~0.4% estimated chance of attack in 30 days
No technical write-up beyond these facts and the summary below yet.
Next steps
- Review the advisory against your asset inventory and patch cadence
Summary
- Updated an acknowledgement. This is an informational change only.
Read the original reportMicrosoft Security Update Guide RSS(opens in a new tab)
Part of Vulnerabilities in Windows and Chrome
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- Input Validation Flaw in Views in Google Chrome on on Windows prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a…
Pulse
Last checked 31 Oct · Recheck overdue since 1 Nov 2026, 15:35 UK time · 2 quiet checks collapsed
- Story6 Oct 2026, 17:06 UK time · 6 Oct
Linked reporting from Microsoft Security Update Guide RSS (vendor psirt).
Read source (Microsoft Security Update Guide RSS) - Signal31 Oct 2026, 15:35 UK time · 31 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
CVE-2026-72999 Windows USB Hub Driver Elevation of Privilege Vulnerability
How we know
Statements extracted from sources. Higher confidence means stronger corroboration.
- ClaimedHeadline60% confidence
Out-of-bounds read in Windows USB Hub Driver allows an unauthorised attacker to elevate privileges with a physical attack
- ProbableSummary fact75% confidence
Updated an acknowledgement. This is an informational change only.
- ConfirmedCVE identifier95% confidence
Event involves CVE-2026-72999