CVE-2016-5217: n/a Google Chrome prior to 55.0.2883.75 for Mac,…

CVE-2016-5217: The extensions API in Google Chrome prior to 55.0.2883.75 for Mac, Windows and Linux, and 55.0.2883.84 for...

The extensions API in Google Chrome prior to 55.0.2883.75 for Mac, Windows and Linux, and 55.0.2883.84 for Android incorrectly permitted access to privileged plugins, which allowed a remote attacker to bypass site isolation via a crafted HTML page.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 00:53 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Google Chrome browser flaw. A malicious web page could abuse the extensions API to reach privileged plugins and bypass site isolation protections. The practical risk is mainly for unmanaged, frozen, or legacy Chrome/Chromium installations below the 2016 fixed releases. Exposure is limited to Chrome before 55.0.2883.75 on Mac, Windows, and Linux, and before 55.0.2883.84 on Android. Linux distributions that shipped Chromium packages may also have needed vendor updates. Current auto-updated browsers should not be exposed. Low urgency for normally managed modern fleets, because the issue was fixed in 2016 and no active exploitation is cited. Give it priority where legacy systems, kiosk builds, or pinned browser versions remain in production. Mitigation focus: Update Chrome to 55.0.2883.75 or later on desktop platforms.; Update Chrome for Android to 55.0.2883.84 or later.; Apply relevant Red Hat or Gentoo Chromium package advisories where applicable..

Prepared: Jun 13, 2026, 12:51 UTC (UTC+00:00)

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

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jan 19, 2017, 05:43 UTC (UTC+00:00)

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

4Source links

CVSS and timeline data

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

Source materials

CVE List V5 sourceCVE List V5
https://crbug.com/654280CVE reference · x_refsource_CONFIRM
https://chromereleases.googleblog.com/2016/12/stable-channel-update-for-desktop.htmlCVE reference · x_refsource_CONFIRM
GLSA-201612-11CVE reference · vendor-advisory, x_refsource_GENTOO

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/aGoogle Chrome prior to 55.0.2883.75 for Mac, Windows and Linux, and 55.0.2883.84 for AndroidGoogle Chrome prior to 55.0.2883.75 for Mac, Windows and Linux, and 55.0.2883.84 for AndroidListed

Weakness

CWE details

No CWE listed

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