CVE-2025-9866_CVE-2025-9866

8.8 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

Inappropriate implementation in Extensions in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Medium)

Basic Information

ID CVE-2025-9866

Source Chrome

Published Sep 3, 2025 at 16:17

Modified Sep 3, 2025 at 17:16

Affected Product

Vendor Google

Product Chrome

Version 140.0.7339.80

Affected Versions Google Chrome 140.0.7339.80

CWE Classification

CWE-693

References

{
    "lastseen": "",
    "description": "Inappropriate implementation in Extensions in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Medium)",
    "published": "2025-09-03T16:17:48.331Z",
    "modified": "2025-09-03T17:16:15.053Z",
    "type": "cve",
    "title": "CVE-2025-9866",
    "source": "Chrome",
    "references": "https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop.html\nhttps://issues.chromium.org/issues/379337758",
    "id": "CVE-2025-9866",
    "bulletinFamily": "",
    "cwe": [
        "CWE-693"
    ],
    "cvelist": null,
    "sourceData": "Google Chrome 140.0.7339.80",
    "sourceHref": "",
    "cvss": {
        "score": 8.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
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            "privilegesRequired": "",
            "userInteraction": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Chrome",
    "version": "140.0.7339.80",
    "vendor": "Google",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}