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High CVSS 7.8

CVE-2026-62888

Microsoft Windows 10 21h2

Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

What this means

Exposure
Exploitable with local access to the machine, with an ordinary user account and with no action from the victim.
Impact
An attacker can read sensitive data, modify or destroy data and take the service offline.
Weakness
Already-freed memory is reused, letting the attacker reclaim it and hijack execution.
Likelihood
Its EPSS score puts short-term exploitation in a middle band: neither negligible nor imminent.

What to doFold into the next patch cycle.

Read automatically from the CVSS vector, the weakness type (CWE) and the EPSS score. The technical description above remains the one published by NIST.

Published
11 August 2026
CVSS
7.8 (v3.1) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
1.95% probability of exploitation within 30 days · above 79% of all CVEs
Weakness
CWE-416
Sources
nvd
References

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