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Vulnerability details: VCID-j3kg-ezap-qfby
Vulnerability ID VCID-j3kg-ezap-qfby
Aliases CVE-2025-3066
Summary Use after free in Site Isolation in Google Chrome prior to 135.0.7049.84 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Status Published
Exploitability 0.5
Weighted Severity 5.3
Risk 2.6
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
epss 0.00118 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00118 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00118 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
epss 0.00168 https://api.first.org/data/v1/epss?cve=CVE-2025-3066
cvssv3.1 8.8 https://chromereleases.googleblog.com/2025/04/stable-channel-update-for-desktop.html
ssvc Track https://chromereleases.googleblog.com/2025/04/stable-channel-update-for-desktop.html
cvssv3.1 8.8 https://issues.chromium.org/issues/405140652
ssvc Track https://issues.chromium.org/issues/405140652
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2025-3066
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-3066
405140652 https://issues.chromium.org/issues/405140652
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
CVE-2025-3066 https://nvd.nist.gov/vuln/detail/CVE-2025-3066
stable-channel-update-for-desktop.html https://chromereleases.googleblog.com/2025/04/stable-channel-update-for-desktop.html
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://chromereleases.googleblog.com/2025/04/stable-channel-update-for-desktop.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-04-02T13:59:29Z/ Found at https://chromereleases.googleblog.com/2025/04/stable-channel-update-for-desktop.html
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://issues.chromium.org/issues/405140652
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-04-02T13:59:29Z/ Found at https://issues.chromium.org/issues/405140652
Exploit Prediction Scoring System (EPSS)
Percentile 0.31494
EPSS Score 0.00118
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T09:30:31.449856+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2025/3xxx/CVE-2025-3066.json 37.0.0