EUVD-2026-73109
GHSA-qm6x-7v74-ch2r
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Network-reachable RRAS requires low-privilege auth (PR:L); crash-only impact yields A:H with no C or I.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Null pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to deny service over a network.
AnalysisAI
Null pointer dereference in Windows Routing and Remote Access Service (RRAS) enables a network-authenticated attacker with low privileges to crash the service and cause denial of service across all major Windows and Windows Server releases. The vulnerability is triggered over the network without user interaction, making it suitable for disrupting VPN, dial-up, or routing services that rely on RRAS. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a network-reachable RRAS instance (the Routing and Remote Access Service role must be installed and running - it is not enabled by default on Windows clients or servers), plus a valid low-privilege account (PR:L) to authenticate to the service. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 6.5 (Medium) reflects an authenticated network path with no scope change and no confidentiality or integrity impact. … 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 | Apply the Microsoft security update corresponding to your Windows version via Windows Update or WSUS - the exact target build numbers are listed per version in the affected products data above and in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72939. … Detailed patch versions, workarounds, and compensating controls in full report. |
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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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