CVE-2021-21127
HighPublic PoC
Published: 09 February 2021
Published
09 February 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.0389
88.5th percentile
Risk Priority
20
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-21127 is a high-severity an unspecified weakness vulnerability in Google Chrome. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 11.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-8518
Vulnerability details
Insufficient policy enforcement in extensions in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass content security policy via a crafted Chrome Extension.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
google
chrome
≤ 88.0.4324.96
microsoft
edge chromium
≤ 88.0.705.50
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.