CVEPublished 2026-07-14Modified 2026-07-220 articles on news3 live referencesNVD data

CVE-2026-40378Microsoft · Windows_10_1607

Vulnerability data via NVD (ingested)

CVSS v3.1
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS percentile
53
Exploit Prediction Scoring System · top 47% of all CVEs
Description

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

Timeline
Published 2026-07-14
Modified 2026-07-22

External references

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

More intel sources (5)

Known PoCs on GitHub

No public proof-of-concept repositories found for CVE-2026-40378 on GitHub.
We haven't classified any articles referencing CVE-2026-40378 yet. The external references above still apply.