What is the CVSS score of EUVD-2026-74389?

EUVD-2026-74389 has a CVSS 3.1 base score of 4.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.2%.

Is there a patch available for EUVD-2026-74389?

Yes, a patch is available for EUVD-2026-74389. Update the affected software to the latest version immediately.

Google Chrome EUVD-2026-74389

| CVE-2026-87622 MEDIUM

Missing Authorization (CWE-862)

2026-09-09 Chrome

GHSA-p9c3-6j92-cgx5

Google

4.3

CVSS 3.1 · Vendor: Chrome

Severity by source

Vendor (Chrome) PRIMARY

4.3 MEDIUM

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

vuln.today AI

4.3 MEDIUM

Network-delivered via crafted page (AV:N/AC:L/PR:N), user must visit page (UI:R), no scope change, confidentiality-only limited impact (C:L/I:N/A:N) - matches provided vector.

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

4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (Chrome).

CVSS VectorVendor: Chrome

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Metadata Corrected

Sep 09, 2026 - 18:40 vuln.today

tag: Authentication Bypass removed

Analysis Generated

Sep 09, 2026 - 18:27 vuln.today

Patch available

Sep 09, 2026 - 01:03 EUVD

CVE Published

Sep 09, 2026 - 00:09 cve.org

MEDIUM 4.3

CVE Published

Sep 09, 2026 - 00:09 cve.org

UNKNOWN (no severity yet)

DescriptionCVE.org

Missing authorization in FedCM in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)

AnalysisAI

Missing authorization in Google Chrome's FedCM (Federated Credential Management) component, versions prior to 153.0.8010.36, enables a remote attacker to bypass the web origin policy by luring a user to a crafted HTML page. The flaw (CWE-862) results in limited confidentiality impact - an origin-policy bypass that could expose data scoped to that cross-origin context. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation	User interaction is required: the victim must navigate to an attacker-controlled HTML page, meaning drive-by exploitation via phishing link, malvertising, or social engineering is the realistic vector. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	The overall risk is low-to-moderate. … 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	Upgrade Google Chrome to version 153.0.8010.36 or later, which contains the vendor-released patch addressing this missing authorization check in FedCM. … Detailed patch versions, workarounds, and compensating controls in full report.