Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2017-20190

9
FAUCET Score

CVE-2017-20190 describes a client-side performance degradation in Microsoft Windows 8 through 11 when processing multiple Unicode combining characters, commonly known as a "Zalgo text" attack. This issue can lead to temporary system slowdowns. While some dispute whether this constitutes a true vulnerability, its low FAUCET Risk Score of 4/100 and absence of a CVSS score suggest a minimal severity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
N/AN/A
n/aCNA affected

CVSS Data

CVSS data has not been published for this CVE.

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15

Social Chatter

Media Mentions

No media coverage found for this CVE.

Remediation

Remediation records are not available for this CVE.

References

aka.ms / windowsbugbar
en.wikipedia.org / wiki/Zalgo_text
talk.dynalist.io / t/dynalist-is-vulnerable-to-zalgo/1234