EUVD-2026-73344
GHSA-95x5-r679-m6mp
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Network-reachable SMB pre-auth path, no credentials or interaction required, purely availability impact via kernel crash; provided vendor vector is accurate.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Null pointer dereference in Windows SMB Server Network Transport Driver (srvnet.sys) allows an unauthorized attacker to deny service over a network.
AnalysisAI
Null pointer dereference in the Windows SMB Server network transport driver (srvnet.sys) enables unauthenticated remote attackers to crash affected Windows systems via a network-based denial-of-service attack. Exploitation requires no credentials and no user interaction, targeting SMB-exposed Windows 11 and Windows Server 2022/2025 endpoints. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions are required beyond network reachability to the Windows SMB service on TCP 445. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H accurately reflects the threat model: low-complexity, unauthenticated, remotely triggerable availability impact with no confidentiality or integrity consequence. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patches are available for all affected builds via Windows Update and WSUS. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Windows 11 and Windows Server 2022/2025 systems with exposed SMB (TCP 445) and determine their current patch status. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-476 – NULL Pointer Dereference
View allSame technique Denial Of Service
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External POC / Exploit Code
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