SARA / Free Tools / CVE / CVE-2018-5174

CVE-2018-5174 — In the Windows 10 April 2018 Update, Windows Defender SmartScreen honors the "SE

In the Windows 10 April 2018 Update, Windows Defender SmartScreen honors the "SEE_MASK_FLAG_NO_UI" flag associated with downloaded files and will not show any UI. Files that are unknown and potentially dangerous will be allowed to run because SmartScreen will not prompt

CVSS
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EPSS
0.54% (top 32.70%)
CWE
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Published
2018-06-11T21:00:00.000Z
Last modified
2024-08-05T05:26:47.099Z
CVSS vector
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01What is this vulnerability?

In the Windows 10 April 2018 Update, Windows Defender SmartScreen honors the "SEE_MASK_FLAG_NO_UI" flag associated with downloaded files and will not show any UI. Files that are unknown and potentially dangerous will be allowed to run because SmartScreen will not prompt the user for a decision, and if the user is offline all files will be allowed to be opened because Windows won't prompt the user…

02Affected products

VendorProductVersions
MozillaThunderbirdunspecified
MozillaThunderbird ESRunspecified
MozillaFirefoxunspecified
MozillaFirefox ESRunspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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