Multiples vulnérabilités dans Google Chrome (09 septembre 2026)

unknownknown exploitedCVE-2026-87491

Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.

De multiples vulnérabilités ont été découvertes dans Google Chrome. Elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur. Google indique que la vulnérabilité CVE-2026-87491 est activement exploitée.

Details

Source: CERT-FR Avis de sécurité (FR · national-cert · site)
Severity: unknown
Published: 2026-09-09
Exploitation: Observed in the wild (CISA KEV)

Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1139/

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Exploitation confirmedCVE-2026-87491Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 21% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-87491	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownexploitedGoogle Chrome Multiple Vulnerabilitieshkcert
unknownexploitedGoogle security advisory (AV26-904)cccs
highexploitedCISA Adds Four Known Exploited Vulnerabilities to Catalogcisa
unknownexploitedNCSC-2026-0354 [1.00] [M/H] Kwetsbaarheid verholpen in Google Chromencsc-nl
highexploitedCVE-2026-87491: Out of bounds write in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to…nvd
criticalexploitedCVE-2026-87491: Google Chromium V8 Out of Bounds Write Vulnerabilitycisa-kev

Multiples vulnérabilités dans Google Chrome (09 septembre 2026)

Details

Exploitation outlook

Referenced CVEs

Same CVEs, other sources

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