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Memory allocation with excessive size value in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.

High CVSS 7.5
CVECVE-2026-40378
First seen2026-07-16 20:16 UTC
Disclosed2026-07-14 17:16 UTC
Last updated2026-07-16 20:16 UTC
Channel statusauto

Summary

Memory allocation with excessive size value in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.

In-depth triage · Auto channel

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Affected products

  • :

Sources

  • NVD DATABASE

Original Links

Timeline

  1. nvd_ingest NVD