CERT-FR Flags Mass Chrome Vulnerabilities
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CERT-FR advisory lists over 200 Chrome vulnerabilities fixed in versions before 155.0.8059.39/40, with no exploitation details given.
CERT-FR issued an advisory relaying Google's October 6, 2026 stable channel update for Chrome, which addresses a very large number of vulnerabilities (over 200 CVEs referenced) affecting Chrome versions prior to 155.0.8059.39 on Windows and Linux, and prior to 155.0.8059.40 on macOS. The advisory does not specify the nature of the vulnerabilities, their exploitability, or whether any are being exploited in the wild — CERT-FR explicitly notes the risk level as 'non spécifié par l'éditeur' (unspecified by the vendor).
No technical details, CVSS scores, or exploitation status are provided in this bulletin; defenders are directed to Google's own stable channel release notes for further information on each CVE. Given the volume of CVEs patched in a single release, this is consistent with Chrome's regular update cadence rather than a targeted or actively exploited campaign.
Recommended action is straightforward: update Google Chrome to the fixed versions (155.0.8059.39 or later for Windows/Linux, 155.0.8059.40 or later for macOS) across the managed fleet as soon as possible, following standard patch management processes. No IOCs, threat actors, or active campaigns are associated with this advisory.
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1268
What this brief leaves out
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It sits in a corpus of 13,853 reports from 146 sources, 616 of them written in the last seven days, and it grows through the day.
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