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CVE Record

CVE-2021-30528: Use after free in WebAuthentication in Google Chrome on Android prior to 91.0.4472.77 allowed a remote atta...

Use after free in WebAuthentication in Google Chrome on Android prior to 91.0.4472.77 allowed a remote attacker who had compromised the renderer process of a user who had saved a credit card in their Google account to potentially exploit heap corruption via a crafted HTML page.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This Chrome vulnerability could let an attacker corrupt memory in Android Chrome, but only after first compromising the renderer process and targeting a user with a saved credit card in their Google account. It is a serious browser-risk scenario, but the public bundle does not show CISA KEV listing or confirmed active exploitation. Exposure is most likely where Android Chrome remained below 91.0.4472.77. Gentoo and Fedora advisories indicate related downstream browser package attention, but the bundle does not define exact affected downstream versions. Treat this as a high-priority browser hygiene issue, especially for mobile fleets and unmanaged endpoints. The exploitation prerequisites reduce immediate certainty, but memory corruption in a browser remains material because users regularly handle untrusted web content. Mitigation focus: Update Android Chrome to 91.0.4472.77 or later.; Apply Gentoo and Fedora browser updates where those advisories apply.; Check Google and OS vendor guidance for exact package remediation..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2021-30528 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
GoogleChromeunspecifiedListed
Weakness

CWE details

No CWE listed

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