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Google Chrome EUVDEUVD-2026-74454

| CVE-2026-87538 MEDIUM
Improper Restriction of Rendered UI Layers or Frames (CWE-1021)
2026-09-09 Chrome GHSA-46w2-h3jp-c98w
4.2
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
4.2 MEDIUM
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L
vuln.today AI
4.2 MEDIUM

Renderer compromise prerequisite justifies AC:H; UI spoofing affects both confidentiality and integrity (C:L/I:L); no availability impact identified for clickjacking.

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

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
Low

Lifecycle Timeline

5
Metadata Corrected
Sep 09, 2026 - 20:40 vuln.today
tag: XSS removed
Analysis Generated
Sep 09, 2026 - 20:29 vuln.today
Patch available
Sep 09, 2026 - 01:03 EUVD
CVE Published
Sep 09, 2026 - 00:10 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 09, 2026 - 00:10 cve.org
MEDIUM 4.2

DescriptionNVD

Clickjacking in Input in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to spoof UI elements via a crafted HTML page. (Chromium security severity: Low)

AnalysisAI

Clickjacking via UI spoofing in Google Chrome prior to 153.0.8010.36 allows a remote attacker who has already compromised the renderer process to overlay deceptive UI elements through a crafted HTML page, requiring additional social engineering to complete the attack. The vulnerability (CWE-1021) affects all desktop Chrome builds before the September 2026 stable-channel release. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Two distinct preconditions must both be satisfied: (1) the attacker must have already achieved renderer process compromise through a separate, prior vulnerability - this is a non-trivial prerequisite that requires chaining with another exploit; (2) social engineering must succeed, meaning the victim must be deceived into interacting with the spoofed UI element (UI:R). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.2 base score and Chromium's own 'Low' severity designation are consistent with each other and with the EPSS signal of 0.20%, placing this firmly in the lower-priority tier of Chrome vulnerabilities. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Vendor-released patch: Chrome 153.0.8010.36. … Detailed patch versions, workarounds, and compensating controls in full report.

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EUVD-2026-74454 vulnerability details – vuln.today

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