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Google Chrome CVE-2026-87530

| EUVDEUVD-2026-74395 HIGH
Uncontrolled Search Path Element (CWE-427)
2026-09-09 Chrome GHSA-h9cr-m3q7-4hh8
8.1
CVSS 3.1 · Vendor: Chrome
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Severity by source

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

Local filesystem access required (AV:L); attacker must plant DLL in specific path (AC:H); no special privileges needed to write target path (PR:N); CredentialProvider runs outside sandbox yielding scope change (S:C).

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

Primary rating from Vendor (Chrome).

CVSS VectorVendor: Chrome

Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

5
Metadata Corrected
Sep 09, 2026 - 16:40 vuln.today
tag: Microsoft removed
Analysis Generated
Sep 09, 2026 - 15:44 vuln.today
Patch available
Sep 09, 2026 - 01:03 EUVD
CVE Published
Sep 09, 2026 - 00:09 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 09, 2026 - 00:09 cve.org
HIGH 8.1

DescriptionCVE.org

Uncontrolled search path element in CredentialProvider in Google Chrome on on Windows prior to 153.0.8010.36 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: Medium)

AnalysisAI

Uncontrolled search path element in Chrome's Windows CredentialProvider component (CWE-427) enables a local attacker to execute arbitrary code outside the browser sandbox on Windows systems running Chrome prior to 153.0.8010.36. The flaw is a DLL or executable search-order hijacking issue: Chrome's CredentialProvider resolves a dependency by searching an attacker-controllable path, allowing a malicious local program to intercept and execute in place of a legitimate component, with the result escaping Chrome's sandbox entirely. …

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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 Exploitation requires local access to the target Windows machine - the attacker must be able to write a malicious executable or DLL to a directory that precedes the legitimate target in Chrome's CredentialProvider search path. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 8.1 score (AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H) reflects a high-impact but locally-constrained flaw; the sandbox escape (S:C) and full C/I/A triad drive the score up, while AC:H and AV:L pull it down significantly. … 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.

Recommended ActionAI

Within 24 hours: Audit your environment to identify and count all Chrome installations on Windows systems running versions prior to 153.0.8010.36, and communicate patch urgency to affected users. …

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CVE-2026-87530 vulnerability details – vuln.today

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