What is the CVSS score of CVE-2026-6309?

CVE-2026-6309 has a CVSS 3.1 base score of 8.3 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Is there a patch available for CVE-2026-6309?

Yes, a patch is available for CVE-2026-6309. Update the affected software to the latest version immediately.

Google CVE-2026-6309

EUVD-2026-23060 HIGH

Use After Free (CWE-416)

2026-04-15 Chrome

GHSA-vm22-5c7q-8w8h

Denial Of Service Google Use After Free Memory Corruption

8.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.3 HIGH

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

SUSE

HIGH

qualitative

Red Hat

9.0 HIGH

qualitative

Primary rating from NVD.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Jul 26, 2026 - 15:13 vuln.today

CVSS changed

Apr 15, 2026 - 20:22 NVD

8.3 (HIGH)

Patch released

Apr 15, 2026 - 19:46 nvd

Patch available

EUVD ID Assigned

Apr 15, 2026 - 19:45 euvd

EUVD-2026-23060

CVE Published

Apr 15, 2026 - 19:04 nvd

HIGH 8.3

DescriptionCVE.org

Use after free in Viz in Google Chrome prior to 147.0.7727.101 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

AnalysisAI

Sandbox escape via use after free in Google Chrome's Viz component prior to 147.0.7727.101. Exploitation requires a prior compromise of the renderer process and user interaction with a crafted HTML page. No active exploitation reported; EPSS indicates a very low probability of exploitation (0.02%).