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Google Chrome EUVDEUVD-2026-65861

| CVE-2026-78909 CRITICAL
Use After Free (CWE-416)
2026-08-25 Chrome GHSA-wmm4-886h-rf4q
9.6
CVSS 3.1 · Vendor: Chrome
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Severity by source

Vendor (Chrome) PRIMARY
9.6 CRITICAL
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
vuln.today AI
9.6 CRITICAL

Network-reachable crafted page needing victim interaction (UI:R) triggers a browser-process UAF that escapes the sandbox, so S:C with full C/I/A impact; no auth needed (PR:N).

3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Primary rating from Vendor (Chrome).

CVSS VectorVendor: Chrome

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
Aug 26, 2026 - 16:43 vuln.today
CVSS changed
Aug 26, 2026 - 16:37 NVD
9.6 (None) 9.6 (CRITICAL)
CVE Published
Aug 25, 2026 - 20:10 cve.org
UNKNOWN (no severity yet)
CVE Published
Aug 25, 2026 - 20:10 cve.org
CRITICAL 9.6

DescriptionCVE.org

Use after free in Views in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

AnalysisAI

Remote code execution in Google Chrome desktop before 152.0.7977.65 lets a remote attacker escape the browser sandbox by luring a victim to a crafted HTML page, exploiting a use-after-free in the Views UI framework to run arbitrary code with the browser process's privileges. The CVSS 9.6 score reflects a scope-changing sandbox escape (S:C), though Google rated the Chromium security severity only Medium and requires user interaction (visiting a malicious page). …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Lure victim to crafted HTML page
Delivery
Page triggers use-after-free in Views
Exploit
Reclaim freed object, hijack control flow
Execution
Execute code in browser process
Impact
Escape sandbox for host code execution

Vulnerability AssessmentAI

Exploitation Exploitation requires the victim to actively visit or open an attacker-controlled crafted HTML page (CVSS UI:R, described as social engineering), so it is not fully automatable and cannot fire against a target with no user action. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The signals conflict and should be weighed carefully. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker crafts a malicious HTML page and uses social engineering (phishing email, malicious ad, or lured link) to get a victim running a vulnerable Chrome build to open it. The page triggers the use-after-free in the Views component, corrupts memory in the browser process, and executes arbitrary code outside the renderer sandbox on the victim's machine. …
Remediation Vendor-released patch: 152.0.7977.65 - upgrade Chrome to 152.0.7977.65 or later on all desktop platforms and restart the browser to load the fix, as documented in Google's Chrome Releases advisory (https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html). … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: inventory all Chrome desktop installations and current versions across endpoints; notify security operations and system administrators of critical patch requirement. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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EUVD-2026-65861 vulnerability details – vuln.today

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