CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

← Back to feed

CVE-2026-48566: Windows DWM Core Library Information Disclosure Vulnerability

mediumCVSS 5.5CVE-2026-48566
Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.

CSIRTS triage

vendor: Microsoftproduct: Windows DWM Core LibraryInformation disclosure
What
An out-of-bounds read allows an authorized attacker to disclose information locally.
Who is affected
Users of Windows DWM Core Library are affected.
Urgency
This vulnerability has a medium severity rating (CVSS 5.5), indicating a moderate urgency for remediation.
Action
Apply the latest security updates to mitigate the information disclosure risk.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Windows DWM Core Library

Get an email when a new Windows DWM Core Library advisory drops — max one per day, one-click unsubscribe.

Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 5.5
Published
2026-06-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48566

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-48566coverage & exploitation statusNVD · CVE.org

Recent advisories for Windows DWM Core

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from Microsoft Security Response Center