EUVD-2026-28059CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionNVD
Inappropriate implementation in Companion in Google Chrome on Mac prior to 148.0.7778.96 allowed a remote attacker to perform OS-level privilege escalation via malicious network traffic. (Chromium security severity: Medium)
AnalysisAI
OS-level privilege escalation in Google Chrome for macOS allows remote attackers to gain elevated system privileges through malicious network traffic exploiting the Companion component. Affects all Chrome versions prior to 148.0.7778.96 on Mac. …
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RemediationAI
Within 24 hours: Identify and inventory all macOS devices running Chrome versions below 148.0.7778.96 via MDM or asset management tools. Within 7 days: Deploy Chrome 148.0.7778.96 or later to all affected macOS endpoints using automated update mechanisms or MDM enforcement; validate successful installation across 95% of inventory. …
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