Home/CVE/Heap-based buffer overflow in Windows Remote Desktop allows an unauthorized attacker to execute code over a network.
CVE

CVE-2025-29966

Heap-based buffer overflow in Windows Remote Desktop allows an unauthorized attacker to execute code over a network.

Heap-based buffer overflow in Windows Remote Desktop allows an unauthorized attacker to execute code over a network.

HIGH · CVSS 8.8 EPSS 0.03389
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules7 YARA rules0
⬡

Weakness Classification

CWE-122Heap-based Buffer Overflow
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

17
microsoft remote desktop< 1.2.6228.0
microsoft windows app< 2.0.420
microsoft windows 10 1507< 10.0.10240.21014
microsoft windows 10 1607< 10.0.14393.8066
microsoft windows 10 1809< 10.0.17763.7314
microsoft windows 10 21h2< 10.0.19044.5854
microsoft windows 10 22h2< 10.0.19045.5854
microsoft windows 11 22h2< 10.0.22621.5335
◈

Sigma Hunt Rules

7
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighUser Added to Remote Desktop Users Group
producthighNgrok Usage with Remote Desktop Service
productmediumPotential Remote Desktop Tunneling
productmediumNew Remote Desktop Connection Initiated Via Mstsc.EXE
productmediumDenied Access To Remote Desktop
productmediumPotential Remote Desktop Connection to Non-Domain Host
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Scoring & Timeline

8.8
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 May 2025 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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Vendor Advisories

1
msrcCVE-2025-29966Remote Code Execution
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