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VULNERABILITIES

CVE-2018-5174 Details

Description

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 to ask what to do. Firefox incorrectly sets this flag when downloading files, leading to less secure behavior from SmartScreen. Note: this issue only affects Windows 10 users running the April 2018 update or later. It does not affect other Windows users or other operating systems. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://bugzilla.mozilla.org/show_bug.cgi?id=1447080 CVEIssue TrackingPermissions RequiredThird Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-11/ CVEVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-12/ CVEVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-13/ CVEVendor Advisory
http://www.securityfocus.com/bid/104136 CVEThird Party AdvisoryVDB Entry

see all 12 references

Weakness Enumeration

CWE-IDCWE NameSource
NVD-CWE-noinfoInsufficient Information to Classify Weakness[email protected]

Affected Products

ProductVersions
mozilla firefox
< 52.8.0
< 60.0

CPE

  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
mozilla thunderbird
< 52.8.0

CPE

  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
mozilla thunderbird esr
< 52.8.0

CPE

  • cpe:2.3:a:mozilla:thunderbird_esr:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
microsoft windows 10
All versions

CPE

  • cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

7 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2018-5174
NVD Published Date:
Jun 11, 2018
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2018-5174 Details - Not Deferred