THREATPORT/VULNERABILITY/CVE-2021-21215
MEDIUM SEVERITY

CVE-2021-21215

Chrome vulnerability

CVSS
6.5
EPSS
34.5%
EPSS pct
98th
Exploited
No known
Inappropriate implementation in Autofill in Google Chrome prior to 90.0.4430.72 allowed a remote attacker to spoof security UI via a crafted HTML page.
Affected vendor
Google
Affected product
Chrome
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness type (CWE)
  • CWE-290 — Authentication Bypass by Spoofing
Published
2021-04-26

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to integrity.

Its EPSS score of 34.5% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2021-21215

  • Confirm whether Google Chrome is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-21215.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-21215

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-21215 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-2021-21215?

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