Type Vulnerability
A vulnerability in Windows Win32K could allow an authorised attacker to locally disclose sensitive system information.
Microsoft
Exposure of sensitive system information to an unauthorized control sphere in Windows Win32K allows an authorized attacker to disclose information locally
CVE-2026-119856
What this means
This is rated medium severity (5.5 out of 10). There is no confirmed exploitation of it yet.
Full vendor description
Exposure of sensitive system information to an unauthorized control sphere in Windows Win32K allows an authorized attacker to disclose information locally.
Scoring and exploitation
5.5/ 10
CVSS 3.1 base scoreMedium
Exploitable only with local access and a low-privilege account, and no one has to click or open anything. High impact on confidentiality.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Exploitability
Longer bar: easier to attack
Attack vectorLocalAV:L
Attack complexityLowAC:L
Privileges requiredLowPR:L
User interactionNoneUI:N
ScopeUnchangedS:U
Impact
Longer bar: more harm
ConfidentialityHighC:H
IntegrityNoneI:N
AvailabilityNoneA:N
- ~0.5% estimated chance of attack in 30 daysModel estimate (): a probability signal, not confirmed exploitation
- Exploited in the wild
- Not confirmed in the
- Not reported
Weaknesses
CWE-497
References
1 link from the CVE record, grouped by site.
msrc.microsoft.com1 link