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CVE

CVE-2021-40455

Windows Installer Spoofing Vulnerability

Windows Installer Spoofing Vulnerability.

MEDIUM · CVSS 5.5 EPSS 0.00593
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
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Affected Products & Versions

11
microsoft windows 10all versions
microsoft windows 11all versions
microsoft windows 7all versions
microsoft windows 8.1all versions
microsoft windows rt 8.1all versions
microsoft windows serverall versions
microsoft windows server 2008all versions
microsoft windows server 2012all versions
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Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · secure@microsoft.com
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Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Oct 2021 · 01:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
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Vendor Advisories

1
msrcCVE-2021-40455Spoofing
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40455PatchVendor Advisory
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