What is the CVSS score of CVE-2026-87645?

CVE-2026-87645 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N. EPSS exploitation probability: 0.2%.

Is there a patch available for CVE-2026-87645?

Yes, a patch is available for CVE-2026-87645. Update the affected software to the latest version immediately.

Google Chrome CVE-2026-87645

EUVD-2026-74335 MEDIUM

Improper Check for Unusual or Exceptional Conditions (CWE-754)

2026-09-09 Chrome

GHSA-426w-pggc-fjjq

Google

5.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

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

vuln.today AI

5.4 MEDIUM

Network-delivered via crafted HTML requiring user visit (UI:R); no auth needed (PR:N); scope unchanged; partial C/I impact from Safebrowsing restriction bypass only.

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

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

Primary rating from NVD.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Metadata Corrected

Sep 10, 2026 - 14:40 vuln.today

tag: Authentication Bypass removed

Analysis Generated

Sep 10, 2026 - 14:21 vuln.today

CVSS changed

Sep 10, 2026 - 14:07 NVD

5.4 (MEDIUM)

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 nvd

MEDIUM 5.4

DescriptionNVD

Improper state validation in Safebrowsing in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)

AnalysisAI

Safebrowsing in Google Chrome prior to 153.0.8010.36 contains improper state validation (CWE-754) that allows a remote, unauthenticated attacker to bypass system access restrictions enforced by the Safe Browsing subsystem via a specially crafted HTML page. The bypass yields partial confidentiality and integrity impact (C:L/I:L) but no availability impact, consistent with circumventing protective filtering rather than achieving code execution. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation	The victim must be running Google Chrome prior to version 153.0.8010.36 and must visit an attacker-controlled crafted HTML page (UI:R). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N yields a 5.4 Medium score. … 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	Update Google Chrome to version 153.0.8010.36 or later using Chrome's built-in auto-update mechanism or by downloading directly from the official stable channel. … Detailed patch versions, workarounds, and compensating controls in full report.