CVE-2025-1918Network attack vector

Memory access via PDFium out-of-bounds read

Published Mar 5, 2025 · Updated Feb 26, 2026

Out-of-bounds read in PDFium in Google Chrome before 134.0.6998.35 allows remote attackers to access memory via a crafted PDF file. Google identifies the PDFium component and the out-of-bounds read, but the restricted issue record does not disclose the faulty function or boundary check. Exploitation requires a user to open or render the crafted PDF, and the documented consequence is out-of-bounds memory access rather than confirmed code execution.

CVSS severity8.8
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in PDFium in Google Chrome before 134.0.6998.35 allows remote attackers to access memory via a crafted PDF file. Google identifies the PDFium component and the out-of-bounds read, but the restricted issue record does not disclose the faulty function or boundary check. Exploitation requires a user to open or render the crafted PDF, and the documented consequence is out-of-bounds memory access rather than confirmed code execution.

The record

CVE
CVE-2025-1918
Published
Mar 5, 2025
Updated
Feb 26, 2026
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-125, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=134.0.6998.35 <134.0.6998.35

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=134.0.6998.35 <134.0.6998.35

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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