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CVE-2025-9866

🗓️ 03 Sep 2025 16:17:48Reported by ChromeType 
cve
 cve
🔗 web.nvd.nist.gov👁 116 Views

Extension CSP bypass in Chrome before 140.0.7339.80 via crafted HTML page.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2025-9866
3 Sep 202516:17
–attackerkb
alpinelinux
AlpineLinux
CVE-2025-9866
3 Sep 202516:17
–alpinelinux
astralinux
AstraLinux
Astra Linux – Vulnerability in Chromium
1 Nov 202510:54
–astralinux
freebsd
FreeBSD
chromium -- multiple security fixes
2 Sep 202500:00
–freebsd
freebsd
FreeBSD
qt6-webengine -- Multiple vulnerabilities
25 Sep 202500:00
–freebsd
bdu_fstec
BDU FSTEC
Extensions Component Bypass Security Restrictions
16 Sep 202500:00
–bdu_fstec
cgr
Chainguard
CVE-2025-9866 vulnerabilities
1 Jul 202614:16
–cgr
circl
Circl
CVE-2025-9866
3 Sep 202519:08
–circl
cnnvd
CNNVD
Google Chrome security vulnerabilities
2 Sep 202500:00
–cnnvd
cnvd
CNVD
Google Chrome Extension Improperly Implemented Vulnerability
8 Sep 202500:00
–cnvd
Rows per page
NVD
Vulners
Node
googlechromeRange<140.0.7339.80
[
  {
    "vendor": "Google",
    "product": "Chrome",
    "versions": [
      {
        "version": "140.0.7339.80",
        "status": "affected",
        "lessThan": "140.0.7339.80",
        "versionType": "custom"
      }
    ]
  }
]

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26 Sep 2026 00:10Current
7.3High risk
Vulners AI Score7.3
CVSS 3.18.8
EPSS0.00503
SSVC
116