CVE-2025-1923Network attack vector

UI spoofing via crafted malicious extension

Published Mar 5, 2025 · Updated Mar 5, 2025

Inappropriate permission-prompt handling in Google Chrome before 134.0.6998.35 allows attackers to spoof browser UI through a crafted extension. The public advisory names Permission Prompts as the affected component, but the linked Chromium issue remains access-restricted and Google has not disclosed the faulty operation. Exploitation requires convincing a user to install the malicious extension; the documented consequence is visual UI impersonation, not code execution or data disclosure.

CVSS severity4.3
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Inappropriate permission-prompt handling in Google Chrome before 134.0.6998.35 allows attackers to spoof browser UI through a crafted extension. The public advisory names Permission Prompts as the affected component, but the linked Chromium issue remains access-restricted and Google has not disclosed the faulty operation. Exploitation requires convincing a user to install the malicious extension; the documented consequence is visual UI impersonation, not code execution or data disclosure.

The record

CVE
CVE-2025-1923
Published
Mar 5, 2025
Updated
Mar 5, 2025
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-1021, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 5, 2025Record 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

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

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-1021Improper Restriction of Rendered UI Layers or Frames
T1204.002User Execution: Malicious 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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