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CVE-2026-119390

Heap buffer overflow in Remote Desktop Client (local, authenticated)

CVSS 3.1
7.8 high
EPSS
—
Published
·
Modified
Analyze CVE-2026-119390 with Vani AIImpact, affected versions, exploitation status, mitigations and detection

A heap-based buffer overflow in Microsoft Remote Desktop Client lets an attacker who already has a local account run code on the machine. No user interaction is required. Successful exploitation can give full control of confidentiality, integrity, and availability in the same security context. Microsoft has not listed affected builds.

What to do: Apply Microsoft's update for CVE-2026-119390. No workaround is stated.

ProductAffected
Microsoft Remote Desktop Client—
Estimated exposure
No basis for an estimate.

Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.

Description · NVD

Heap-based buffer overflow in Remote Desktop Client allows an authorized attacker to execute code locally.

Weakness
CWE-122
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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