Description
Heap buffer overflow in PDFium in Google Chrome prior to 145.0.7632.109 allowed a remote attacker to perform an out of bounds memory write via a crafted PDF file. (Chromium security severity: High)
Published: 2026-02-18
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Immediate Patch
AI Analysis

Impact

A heap buffer overflow exists within the PDFium component of Google Chrome, allowing a crafted PDF file to trigger an out‑of‑bounds memory write. This flaw can give a remote attacker the ability to alter program flow and potentially execute arbitrary code in the context of the browser process.

Affected Systems

The vulnerability affects Google Chrome releases prior to version 145.0.7632.109. Users running any earlier Chrome build on Windows, macOS, or Linux are potentially exposed.

Risk and Exploitability

The flaw carries a CVSS score of 8.8, indicating high severity, but the EPSS score of less than 1% suggests a low probability of exploitation at this time. It is not listed in CISA’s KEV catalog. Attackers would likely deliver malicious PDF content via email attachments or web downloads, exploiting the PDF viewer to initiate the buffer overflow.

Generated by OpenCVE AI on April 17, 2026 at 18:26 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to version 145.0.7632.109 or newer.
  • If upgrading immediately is not possible, disable the built‑in PDF viewer or replace it with a trusted third‑party PDF reader.
  • Configure Chrome to receive automatic updates so that future patches are applied promptly.

Generated by OpenCVE AI on April 17, 2026 at 18:26 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DSA Debian DSA DSA-6146-1 chromium security update
History

Fri, 20 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
Title chromium-browser: Heap buffer overflow in PDFium
References
Metrics threat_severity

None

 threat_severity

Important

Thu, 19 Feb 2026 18:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

Thu, 19 Feb 2026 12:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 19 Feb 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Wed, 18 Feb 2026 22:00:00 +0000

Type Values Removed Values Added
Description Heap buffer overflow in PDFium in Google Chrome prior to 145.0.7632.109 allowed a remote attacker to perform an out of bounds memory write via a crafted PDF file. (Chromium security severity: High)
Weaknesses CWE-122
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-02-26T14:44:15.504Z

Reserved: 2026-02-18T00:23:54.007Z

Link: CVE-2026-2648

cve-icon Vulnrichment

Updated: 2026-02-19T11:17:07.516Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-18T22:16:26.710

Modified: 2026-02-19T18:35:27.370

Link: CVE-2026-2648

cve-icon Redhat

Severity : Important

Publid Date: 2026-02-18T00:00:00Z

Links: CVE-2026-2648 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-04-17T18:30:05Z

Weaknesses