What is the CVSS score of CVE-2026-6305?

CVE-2026-6305 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Is there a patch available for CVE-2026-6305?

Yes, a patch is available for CVE-2026-6305. Update the affected software to the latest version immediately.

Google CVE-2026-6305

EUVD-2026-23052 HIGH

Heap-based Buffer Overflow (CWE-122)

2026-04-15 Chrome

RCE Buffer Overflow Google Heap Overflow

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

SUSE

HIGH

qualitative

Red Hat

9.6 HIGH

qualitative

Primary rating from NVD.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Jul 26, 2026 - 15:14 vuln.today

CVSS changed

Apr 15, 2026 - 21:22 NVD

8.8 (None) 8.8 (HIGH)

Patch released

Apr 15, 2026 - 19:46 nvd

Patch available

EUVD ID Assigned

Apr 15, 2026 - 19:45 euvd

EUVD-2026-23052

CVE Published

Apr 15, 2026 - 19:04 nvd

HIGH 8.8

DescriptionCVE.org

Heap buffer overflow in PDFium in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Chromium security severity: High)

AnalysisAI

Remote code execution via crafted PDF in Google Chrome versions prior to 147.0.7727.101 allows an attacker to execute arbitrary code inside the browser's sandbox. The heap buffer overflow in PDFium is triggered by opening a malformed PDF file. No public exploit code or active exploitation has been confirmed, and EPSS indicates a low probability of exploitation.