CVE-2026-45642

LOW
Published Jun 9, 2026 Modified Jun 11, 2026 CWE-20

Description

Improper input validation in Microsoft Azure Attestation service and Device Health Attestation Service allows an authorized attacker to perform spoofing with a physical attack.

CVSS v3.1 Score

3.9
LOW
CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

EPSS — Exploit Prediction

0.0032
Probability of exploitation
0.24%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-20 Improper Input Validation

Affected Products

Vendor Product
microsoft windows_10_1607
microsoft windows_10_1607
microsoft windows_10_1809
microsoft windows_10_1809
microsoft windows_10_21h2
microsoft windows_10_21h2
microsoft windows_10_21h2
microsoft windows_10_22h2
microsoft windows_10_22h2
microsoft windows_10_22h2
microsoft windows_11_23h2
microsoft windows_11_23h2
microsoft windows_11_24h2
microsoft windows_11_24h2
microsoft windows_11_25h2
microsoft windows_11_25h2
microsoft windows_11_26h1
microsoft windows_11_26h1
microsoft windows_server_2012
microsoft windows_server_2012
microsoft windows_server_2016
microsoft windows_server_2019
microsoft windows_server_2022
microsoft windows_server_2025

References

Frequently Asked Questions

What is CVE-2026-45642? +
Improper input validation in Microsoft Azure Attestation service and Device Health Attestation Service allows an authorized attacker to perform spoofing with a physical attack. It has a CVSS v3.1 base score of 3.9 (LOW).
How severe is CVE-2026-45642? +
CVE-2026-45642 has a CVSS v3.1 score of 3.9 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0032, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-45642? +
CVE-2026-45642 affects products from microsoft, specifically: windows_10_1607, windows_10_1809, windows_10_21h2, windows_10_22h2, windows_11_23h2, windows_11_24h2, windows_11_25h2, windows_11_26h1, windows_server_2012, windows_server_2016, windows_server_2019, windows_server_2022, windows_server_2025. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-45642? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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