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CVE-2017-20190 Some Microsoft technologies as used in Windows 8 through 11 allow a temporary client-side performance degradation during…

Description

Some Microsoft technologies as used in Windows 8 through 11 allow a temporary client-side performance degradation during processing of multiple Unicode combining characters, aka a "Zalgo text" attack. NOTE: third parties dispute whether the computational cost of interpreting Unicode data should be considered a vulnerability.

Affected products and versions

Product Affected versions Fixed in
n/a Versions not published
Windows 8 8 → 11 No fix stated

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