Cyber Resilience

CVE-2021-21187

Medium

Published: 09 March 2021

Published
09 March 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS Score 0.0111 78.6th percentile
Risk Priority 9 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-21187 is a medium-severity an unspecified weakness vulnerability in Fedoraproject Fedora. Its CVSS base score is 4.3 (Medium).

Operationally, ranked in the top 21.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Insufficient data validation in URL formatting in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to perform domain spoofing via IDN homographs via a crafted domain name.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

google
chrome
≤ 89.0.4389.72
fedoraproject
fedora
32, 33, 34
debian
debian linux
10.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References